Calcuate Surface Area of Triangular, Square, Rectangular, Pentagonal, Hexagonal and Octagonal Prisms using our Prism Surface Area Calculator!Surface Area Examples. Example 1: Find the total surface area of a cylinder if its radius is 3.5 units and height is 6 units. Solution: We know that the formula to find the total surface area of a cylinder = 2πr (r + h) = 2 × 22/7 × 3.5 × (3.5 + 6) = 2 × 22/7 × 3.5 × (9.5) = 209 unit 2. Therefore, the total surface area of the cylinder ...You can calculate the volume of a trapezoidal prism in five steps: Determine the length of the short base (b) Determine the length of the long base (B) Calculate the …The 3D Trapezoidal Shape calculator computes the volume, surface area and edge lengths of a trapezoidal shape based on the dimensions: INSTRUCTIONS: Choose units and enter the following: (a) Width of Top (b) Length of Top (A) Width of Bottom (B) Length of Bottom (h) Height between Top and Bottom Trapezoid Volume (V): The calculator returns the volume in cubic meters, the surface area in square ...SA = a2 + 2×a×l. 🔎 Proof: The surface area of a square pyramid is the sum of the areas of its square base and four triangular faces: SA = BA + (4 × FA) The area of a triangle is half of the product of its base length ( a) and height ( l ): FA = a×l/2.This calculator calculates the surface area of a trapezoidal prism using sides of trapezoid, altitude, height values. The length of the four rectangles will be the sum of the four sides of the trapezoid, the two bases, and the other two sides.The volume of a trapezoidal prism is the space it occupies in the three-dimensional plane. It is measured in cubic units such as m 3, cm 3, mm 3, ft 3.. Formula. The formula is given below:Example 5. Find the total surface area of a hexagonal prism whose apothem length, base length, and height are given as 7 m, 11 m, and 16 m, respectively. Solution. The total surface area formula for a hexagonal prism is given as: TSA = 6ab + 6bh. Substitute. TSA = 6 x 7 x 11 + 6 x 11 x 16. = 462 + 1056.An isosceles trapezoid is a trapezoid with legs that have the same length (compare to isosceles triangles).. Just in case, let us also recall that a trapezoid is a geometric shape with four sides such that at least one pair of sides is parallel to each other.If there are two such pairs, then we get a parallelogram.The two parallel sides are called …Example 6: missing length in a pentagonal prism. The volume of this prism is 225 \mathrm {~cm}^2 225 cm2. Calculate the height, h h , of the prism: Write down the formula. Show step. \text {Volume of prism }=\text { Area of the base } \times \text { height} Volume of prism = Area of the base × height.Step 1: The base triangle is an equilateral triangle with its side as a = 6. So its area is found using the formula, √3a 2 /4 = √3 (6) 2 /4 = 9√3 square inches. Step 2: The length of the prism is 15 in. Step 3: The volume of the given triangular prism = base area × length = 9√3 × 15 = 135√3 cubic inches.Equation for calculate surface area of a trapezoidal prism is,. S=a(l + h) + b(l + h) + lc + ld. where, a, b, c, d are sides of the trapezium. h is Altitude and l ...The surface area of a closed cylinder can be calculated by summing the total areas of its base and lateral surface: base SA = 2πr 2. lateral SA = 2πrh. total SA = 2πr (r + h) where r is the radius and h is the height. Jeremy has a large cylindrical fish tank that he bathes in because he doesn't like showers or bathtubs.Find the height of a rectangular prism if the surface area is 458.17 in2, the width is 6.2 in and the length is 8.3 in. What is the formula of a base area for a right trapezoidal prism? If a rectangular prism has a surface area of 198 square feet, a height of 6 feet and a lateral surface area of 144 square feet, what is the base area of the prism?Knowing the present value of an annuity is important for retirement planning. This guide walks you through how it works and how to calculate it. Calculators Helpful Guides Compare ...Volume Calculation Formula. The volume of a trapezoidal prism can be calculated using the following formula: Volume = ((a + b) / 2) * h * l. Where: a and b are the lengths of the parallel sides of the trapezoid, h is the height of the trapezoid, l is the length of the prism.How to Use the Prism Volume Calculator. Our prism volume calculator is designed to make it easy for you to find the volume of any prism. To use the calculator: Enter the area of the base of the prism. Enter the height of the prism. The calculator will automatically calculate the volume of the prism.Aug 3, 2023 · The surface area of a rectangular prism is the entire space occupied by its outer layer (or faces). It is expressed in square units such as m 2, cm 2, mm 2, and in 2. Formulas. Like all 3-dimensional shapes, we can calculate 2 types of surface areas in a rectangular prism. Lateral Surface Area 1. Set up the formula for finding the surface area of a prism. The formula is , where equals the surface area of the prism, equals the lateral area of the prism, and equals the area of one base. 2. Plug the lateral area into the formula. This is the surface area of all sides of the prism that are not the base.Jun 10, 2013 ... How to find the area of a trapezium and then the volume of of a prism with the cross-section a trapezium. This video talks through three ...Mar 21, 2019 ... Use the formula S=Ph to find the lateral surface area of rectangular prisms.Step 1: Determine the shape of each face. Step 2: Calculate the area of each face. Step 3: Add up all the areas to get the total surface area. We can also use the formula: Surface area of prism = 2 × area of base + perimeter of base × height. Worksheet to calculate the surface area and volume of a rectangular prism. Example:To calculate the surface area of a rectangular prism, you need to determine the area of each face and then sum them up. The formula for finding the surface area of a rectangular prism is as follows: Surface Area = 2lw + 2lh + 2wh. In this formula, ‘l’ represents the length, ‘w’ represents the width, and ‘h’ represents the height of ...Compounding lets you earn interest on interest. It's equal to P[(1+ r/n)^nt - 1] where P is principal, r = annual rate, n = number of compounding periods and t = the number of year...Mar 21, 2019 ... Use the formula S=Ph to find the lateral surface area of rectangular prisms.Find the volume of the trapezoidal prism. The capacity of a container to store a given amount of fluid is defined by its volume (gas or liquid). It is typically expressed in cubic units. Trapezoidal prism volume Multiplying the area of the base with the height yields the volume of the trapezoidal prism. Formula. v = A × l A = 1 2 × h × a + bYou can calculate the area of a circle with the following formula: A_ {\text {base}}=\pi\cdot r^2 Abase = π ⋅ r2. where: r r — Radius of a circle. Later, we will add this base area equation to the equation we will derive next for the lateral area of a right cone. A cone folded flat forms a sector of a larger circle.Practical Examples of Trapezoid Area Calculations. Example 1: If the length of base1 is 8 units and base2 is 5 units, with a height of 4 units, the area will be calculated as ( (8+5)/2)*4 = 26 square units. Example 2: For base1 equal to 10 units, base2 equal to 7 units, and a height of 6 units, the area becomes ( (10+7)/2)*6 = 51 square units.The ℓ of this trapezoidal prism is 5 m. Determine the height (h). Also, the height, h, of the trapezoidal prism is 3 m. Calculate the volume of a trapezoidal prism. The last step is to calculate the volume of the trapezoidal prism using the formula: ((b + B) / 2) × h × ℓ. Thus, the volume of the trapezoidal prism is ((5 m + 5 m) / 2) × 5 ...Discover Resources. Representation of domain and range (quadratic function) Investigation 1. QuadraticFunc_EP03. สามเหลี่ยมพีทาโกรัส. Unit 4 Lesson 6-9 Quiz.Microsoft Excel is a powerful business tool as it gives you the ability to calculate complex numbers and create intricate formulas. For instance, you can calculate the sum of multi...Find the total surface area of a hexagonal prism with a base edge of 4 cm and a height of 7.5 cm. Solution: Here we will use an alternative formula. Total Surface Area ( TSA) = 6 b h + 3 3 × b 2, here b = 4 cm, h = 7.5 cm. ∴ T S A = 6 × 4 × 7.5 + 3 3 × 4 2. ≈ 263 cm 2. Finding the surface area of a hexagonal prism when BASE PERIMETER ...SA = a2 + 2×a×l. 🔎 Proof: The surface area of a square pyramid is the sum of the areas of its square base and four triangular faces: SA = BA + (4 × FA) The area of a triangle is half of the product of its base length ( a) and height ( l ): FA = a×l/2.How to Use the Prism Volume Calculator. Our prism volume calculator is designed to make it easy for you to find the volume of any prism. To use the calculator: Enter the area of the base of the prism. Enter the height of the prism. The calculator will automatically calculate the volume of the prism.Calculator online on how to calculate volume of capsule, cone, conical frustum, cube, cylinder, hemisphere, pyramid, rectangular prism, triangular prism and sphere. Calculate volume of geometric solids. Volume formulas. Free online calculators for area, volume and surface area.This calculator calculates the surface area of a trapezoidal prism using sides of trapezoid, altitude, height values. The length of the four rectangles will be the sum of the four sides of the trapezoid, the two bases, and the other two sides.In this example, we find the surface area of a sample trapezoidal prism.Want more practice? Enrol in some of our courses now! https://explorerhop.com Explore... A prism is a transparent element with polished surface which can refract light. Enter the height of the prism and trapezoid and the length of the top and bottom of the prism in the trapezoidal prism volume calculator to find the volume and area of the trapezoidal prism. Equation for calculate surface area of a trapezoidal prism is,. S=a(l + h) + b(l + h) + lc + ld. where, a, b, c, d are sides of the trapezium. h is Altitude and l ...Calculator that gives out the volume of a trapezoidal prism with the given bases, height, and width values.3V = s V = l • w • h Surface Area = 2(l • w) + 2(l • h) + 2(w • h) Prism Triangular Prism Trapezoidal Prism h B B h V = B • h, where B = area of base Pyramid Cone Rectangular Pyramid Triangular Pyramid B h B h r V = 1/3 B • h, where B = area of base V = 1/3 πr2h Cylinder SphereDec 28, 2021 · Method I. Volume of Right rectangular pyramid. Method II. Identify the parallel sides of the base (trapezoid) to be b1 b 1 and b2 b 2 and the perpendicular distance between them to be h h and find the area of the trapezoid using the formula: Area of the trapezoid = 1 2(b1 +b2) × h = 1 2 ( b 1 + b 2) × h. Identify its height / length of the ... The 3D Trapezoidal Shape calculator computes the volume, surface area and edge lengths of a trapezoidal shape based on the dimensions:. INSTRUCTIONS: Choose units and enter the following: (a) Width of Top(b) Length of Top(A) Width of Bottom(B) Length of Bottom(h) Height between Top and BottomTrapezoid Volume (V): …Jun 8, 2022 · The 3D Trapezoidal Shape calculator computes the volume, surface area and edge lengths of a trapezoidal shape based on the dimensions: INSTRUCTIONS: Choose units and enter the following: (a) Width of Top (b) Length of Top (A) Width of Bottom (B) Length of Bottom (h) Height between Top and Bottom Trapezoid Volume (V): The calculator returns the volume in cubic meters, the surface area in square ... The quantity inside the inner parentheses is 4 times the square of m = (a+b)/2. Obviously m is the linear dimension of the horizontal slice through the solid mid-way between the top and the bottom surfaces, and m 2 is the area of this mid-slice. Hence the Egyptian formula can be interpreted as giving the volume of any frustum in terms of the ...May 14, 2021 ... Welcome to How to Find the Area of a Trapezoid (How to Find the Area of a Trapezium) with Mr. J! Need help with finding the area of a ...Formula for Volume of a Trapezoidal Prism. If the prism length is L,trapezoid base width B, trapezoid top width A, and trapezoid height H, ... Calculating the top surface area and multiplying it with the depth or height of the column. Volume of …The formula for finding the surface area of a triangular prism is given as: A = bh + L (s1 + s2 + s3) Where A is the surface area, b is the bottom edge of the base triangle, h is the height of the base triangle, L is the length of the prism, and s1, s2, and s3 are the three edges of the base triangle. Figure 1 - Triangular Prism Surface Area ...SA = a2 + 2×a×l. 🔎 Proof: The surface area of a square pyramid is the sum of the areas of its square base and four triangular faces: SA = BA + (4 × FA) The area of a triangle is half of the product of its base length ( a) and height ( l ): FA = a×l/2.Find the height of a rectangular prism if the surface area is 458.17 in2, the width is 6.2 in and the length is 8.3 in. What is the formula of a base area for a right trapezoidal prism? If a rectangular prism has a surface area of 198 square feet, a height of 6 feet and a lateral surface area of 144 square feet, what is the base area of the prism?Total Surface Area ( TSA) = (a + b) × h + (a + b + c + d) × l, here a = 7 in, b = 4 in, c = 3.5 in, d = 3 in, h = 2 in, l = 22 in. ∴ TSA = (7 + 4) × 2 + (7 + 4 + 3.5 + 3) × 22. = …Practical Examples of Trapezoid Area Calculations. Example 1: If the length of base1 is 8 units and base2 is 5 units, with a height of 4 units, the area will be calculated as ( (8+5)/2)*4 = 26 square units. Example 2: For base1 equal to 10 units, base2 equal to 7 units, and a height of 6 units, the area becomes ( (10+7)/2)*6 = 51 square units.What is its volume. v=a*l. a=1/2*h* (t+b) a=1/2*9* (8+5) a=58.5. V=58.5*6. V=351 cm cube. Therefore, the area is 58.5 cm 2 and volume is 351 cm 3. The volume of the trapezoidal …About. Transcript. Here are the steps to compute the surface area of a triangular prism: 1. Find the areas of each of the three rectangular faces, using the formula for the area of a rectangle: length x width. 2. Next, find the area of the two triangular faces, using the formula for the area of a triangle: 1/2 base x height. 3. To solve for the height of the right trapezoidal prism, we need to use the formula for the volume of a trapezoidal prism: V = Area of trapezoid* height =(1/2)h(b1 + b2)*x. Where: V is the volume of the prism. h is the height of the trapezoid. b1 and b2 are the lengths of the parallel sides of the trapezoid. x is the height of the prism You can calculate the volume of a trapezoidal prism in five steps: Determine the length of the short base (b) Determine the length of the long base (B) Calculate the …See full list on calculatorsoup.com Some formulas have additional labeling for particular prisms. In triangular, rectangular, and trapezoidal prisms, ‘l’ (or length) stands for the distance between the bases, and ‘h’ stands for the height of the polygonal base.‘l’ is the length for a square prism, and ‘a’ represents the four congruent base edges.For pentagonal and hexagonal prisms, …3V = s V = l • w • h Surface Area = 2(l • w) + 2(l • h) + 2(w • h) Prism Triangular Prism Trapezoidal Prism h B B h V = B • h, where B = area of base Pyramid Cone Rectangular Pyramid Triangular Pyramid B h B h r V = 1/3 B • h, where B = area of base V = 1/3 πr2h Cylinder SphereHow many faces, edges and vertices does a trapezoidal pyramid have? A trapezoidal pyramid has 5 faces, 8 edges, and 5 vertices. Formulas Volume. The formula is: Volume (V) = ${\dfrac{1}{6}\times h\left( b_{1}+b_{2}\right) \times H}$, here b 1 & b 2 = two parallel side lengths of the trapezoidal base, h = base height, H = height of pyramidLet …To calculate the volume of a trapezoidal prism, multiply the area of the trapezoid by the height of the prism. The formula is Volume = h* (b_1 + b_2)/2 * H. What is the formula for...Equation for calculate area of trapezoidal prism is, A = (1 2) h (a + b) Where, h is Height of the Trapezoidal. a is Length of the top. b is Length of the bottom. Equation for calculate Area of Trapezoidal Prism.Some formulas have additional labeling for particular prisms. In triangular, rectangular, and trapezoidal prisms, ‘l’ (or length) stands for the distance between the bases, and ‘h’ stands for the height of the polygonal base.‘l’ is the length for a square prism, and ‘a’ represents the four congruent base edges.For pentagonal and hexagonal prisms, …In the end, you only need the value of the bases and the height! The formula for the area of an irregular trapezoid is: A=\frac {a+b} {2}\cdot h A = 2a + b ⋅ h. There is an easy—and beautiful proof of this. Remember the formula for the area of a triangle: A=b\cdot h/2 A = b⋅ h/2, and now take your irregular trapezoid, a pair of scissors ...A prism is a transparent element with polished surface which can refract light. Enter the height of the prism and trapezoid and the length of the top and bottom of the prism in the trapezoidal prism volume calculator to find the volume and area of the trapezoidal prism.Aug 3, 2023 · A trapezoidal prism is a three-dimensional solid consisting of two identical trapezoidal faces joined together by four rectangular faces. It has 6 faces (2 trapezoidal and 4 rectangular), 12 edges, and 8 vertices.. Trapezoidal Prism. Some real-life examples of trapezoidal prisms are bathtubs shaped like hollow trapezoidal prisms and blocks or ... Atrapezoid = ABase = h 2 (a +b) L = Lateral Surface Area = the sum of the areas of each surface around the Base. L = al +cl + bl + dl. Substitute each piece into …The ℓ of this trapezoidal prism is 5 m. Determine the height (h). Also, the height, h, of the trapezoidal prism is 3 m. Calculate the volume of a trapezoidal prism. The last step is to calculate the volume of the trapezoidal prism using the formula: ((b + B) / 2) × h × ℓ. Thus, the volume of the trapezoidal prism is ((5 m + 5 m) / 2) × 5 ...Step 1: Determine the shape of each face. Step 2: Calculate the area of each face. Step 3: Add up all the areas to get the total surface area. We can also use the formula: Surface area of prism = 2 × area of base + perimeter of base × height. Worksheet to calculate the surface area and volume of a rectangular prism. Example:Most states impose a sales tax on individual purchases of goods and services. The rate of this sales tax depends on your location. The five states without a sales tax are Alaska, ...The 3D Trapezoidal Shape calculator computes the volume, surface area and edge lengths of a trapezoidal shape based on the dimensions:. INSTRUCTIONS: Choose units and enter the following: (a) Width of Top(b) Length of Top(A) Width of Bottom(B) Length of Bottom(h) Height between Top and BottomTrapezoid Volume (V): …Surface area of a triangular prism. The surface area formula for a triangular prism is 2 * (height x base / 2) + length x width 1 + length x width 2 + length x base, as seen in the figure below: A triangular prism is a stack of triangles, so the usually triangle solving rules apply when calculating the area of the bases.To calculate the surface area of a rectangular prism, you need to determine the area of each face and then sum them up. The formula for finding the surface area of a rectangular prism is as follows: Surface Area = 2lw + 2lh + 2wh. In this formula, ‘l’ represents the length, ‘w’ represents the width, and ‘h’ represents the height of ...The total surface area of a triangular prism is the sum of the areas of all its faces: the three lateral faces (rectangles) and two bases (triangles). The most general formula for the surface area of any prism is: Total area = Lateral area + 2 × Base area. It depends on the data you're given as to how to proceed to determine both the lateral ... We will see the formulas to calculate the volume trapezoidal prism. The volume of a prism can be obtained by multiplying its base area by total height of the prism. i.e., volume of a prism = base area × height of the prism. We will use this formula to calculate the volume of a trapezoidal prism as well. The total surface area of a rectangular pyramid is calculated using the formula: TSA = (1/2) × (P 1+P 2) ( P 1 + P 2) × L + Area of bases, where. L = Lateral height of the frustum. P 1 P 1 = The perimeter of the one base rectangle of the frustum. P 2 P 2 = The perimeter of the other base rectangle of the frustum.How many faces, edges and vertices does a trapezoidal pyramid have? A trapezoidal pyramid has 5 faces, 8 edges, and 5 vertices. Formulas Volume. The formula is: Volume (V) = ${\dfrac{1}{6}\times h\left( b_{1}+b_{2}\right) \times H}$, here b 1 & b 2 = two parallel side lengths of the trapezoidal base, h = base height, H = height of pyramidLet …A volume is a 3D measure, while surface area is two-dimensional. The volume tells us about the cubic space that an object occupies, and the surface area is the sum of all areas forming the 3D shape. Take the cardboard box as an example 📦: Volume is the amount of space taken up by the box — simply, it's the space available inside the box.SA = a2 + 2×a×l. 🔎 Proof: The surface area of a square pyramid is the sum of the areas of its square base and four triangular faces: SA = BA + (4 × FA) The area of a triangle is half of the product of its base length ( a) and height ( l ): FA = a×l/2.Knowing the present value of an annuity is important for retirement planning. This guide walks you through how it works and how to calculate it. Calculators Helpful Guides Compare ...The surface area of a rectangular prism is the entire space occupied by its outer layer (or faces). It is expressed in square units such as m 2, cm 2, mm 2, and in 2. Formulas. Like all 3-dimensional shapes, we can calculate 2 types of surface areas in a rectangular prism. Lateral Surface Area
Apr 8, 2014 ... Learn how to find the area and perimeter of trapezoids. A trapezoid is a quadrilateral with one pair of parallel sides. The area of a shape .... Dolby live south las vegas boulevard las vegas nv
The formula utilized by the Surface Area of Hexagonal Prism Calculator is: Surface Area = 2 * (3√3/2) * a^2 + 3 * a * h. Where: ‘a’ represents the length of one side of the hexagonal base. ‘h’ represents the height of the prism. This formula allows users to input the necessary values for ‘a’ and ‘h’ to calculate the total ...Compounding lets you earn interest on interest. It's equal to P[(1+ r/n)^nt - 1] where P is principal, r = annual rate, n = number of compounding periods and t = the number of year...Equation for calculate volume of a trapezoidal prism is, v = A × l. Where, A = area, I = Height of the Prism. Equation for calculate Volume of a Trapezoidal Prism. Formula for volume of a trapezoidal prism calculation.4. Plug the base lengths and height into the area formula and simplify it. Put the base lengths and the height into the formula A = ½ (b 1 +b 2 )h to find the area of the trapezoid. Simplify the number as much as you can and label it with square units. [9] Write the formula: A = ½ (b 1 +b 2 )h.Our free budget calculator based on income will help you see how your budget compares to other people in your area. Find out how your budget compares. Calculators Helpful Guides Co...Calculator online for a the surface area of a capsule, cone, conical frustum, cube, cylinder, hemisphere, square pyramid, rectangular prism, triangular prism, sphere, or spherical cap. Calculate the unknown defining side lengths, circumferences, volumes or radii of a various geometric shapes with any 2 known variables. Online calculators and formulas for a surface area and other geometry problems.To find the radius, r, of a cylinder from its surface area A, you must also know the cylinder's height, h:. Substitute the height h into the surface area of a cylinder equation:. A = 2πr² + 2πrh. Bring all terms in this equation to one side to get 2πr² + 2πrh - A = 0.Note that this is a quadratic equation in terms of r.. Solve this equation using the …Return on investment (ROI) is net income from an investment divided by the initial cost, but there are varying methods that take time frames into consideration or determine your RO...Nov 20, 2020 ... For an organized list of my math videos, please go to this website: https://sites.google.com/view/nabifroesemathvideos/home.Note that in this case, the above trigonometric formula still works since sin (90 °) = 1 \sin(90\degree) = 1 sin (90°) = 1. Phew, that was a lot of theory. It's high time we use these trapezoid formulas and see how to calculate the area and perimeter of a trapezoid in practice in the next section of this text.Formula of Area of Trapezoidal Prism Calculator. The calculation involves the following formula: Surface Area = 2 * ((a + b) * h1 + (a + b) * h2 + a * c) Where: a: Length of the shorter base of the trapezoid. b: Length of the longer base of the trapezoid.Our free budget calculator based on income will help you see how your budget compares to other people in your area. Find out how your budget compares. Calculators Helpful Guides Co...What is the Formula to Calculate the Surface Area of a Trapezoidal Prism? The formula to calculate the surface area of a trapezoidal prism is: Surface Area of a Trapezoidal Prism = h (b + d) + l (a + b + c + d) where h is the …The surface area of the prism is made up of two trapezium-shaped faces and four rectangular faces. The area of the two trapeziums is 2 × 20 = 40 mm². The area of the two side rectangular faces ...Here you will learn about nets of 3D shapes and how they are used to calculate surface area. ... The surface area of the prism is the sum of the areas. ... it would be a prism with trapezoid bases – a trapezoidal prism. 5) Calculate the surface area of this prism, using the net. 216 \mathrm{~cm}^2 . 230 \mathrm{~cm}^2 . 145 \mathrm{~cm}^2 .Decoding the Calculator's Formula with Practical Examples. Example 1: If a cube has a side length of 3 units, the surface area is 54 units² and the volume is 27 units³. Thus, the surface area to volume ratio is 54/27 = 2. Example 2: For a sphere with a radius of 4 units, the surface area is 201 units² and the volume is 268 units³.Example 1: triangular prism, given the area of the cross-section. Below is a triangular prism: The cross-sectional area of the prism is 43cm 243cm2. Calculate the volume of the prism. Write down the formula. Volume of prism = Area of cross section × Depth. 2 Calculate the area of the cross section.Surface Area of a Triangular Prism. s = 1/2(a + b + c) Base SA = s (s – a) (s – b) (s – c)) Lateral SA = h × (a + b + c) You can also use our triangle calculator to find the base surface area using several different methods. This tool is helpful when all sides are not known.Formula: SA rp = P×h + 2B. where, P - the perimeter of the base. h - the height of the prism. B - the area of the base. SA rp - Right prism surface area. Use the simple geometry calculator to calculate the surface area of a right prism online.1. Set up the formula for finding the surface area of a prism. The formula is , where equals the surface area of the prism, equals the lateral area of the prism, and equals the area of one base. 2. Plug the lateral area into the formula. This is the surface area of all sides of the prism that are not the base..