To calculate the total surface area you will need to also calculate the area of the. Total surface area of a closed cylinder is: A L + T + B 2 rh + 2 ( r 2) 2 r (h+r) The area calculated is only the lateral surface of the outer cylinder wall. The units are in place to give an indication of the order of the results such as ft, ft 2 or ft 3. Calculate the top and bottom surface area of a cylinder (2 circles ): T B r 2. Units: Note that units are shown for convenience but do not affect the calculations. Thanks to our rectangular prism calculator, you can easily find the cuboid volume, surface area, and rectangular prism diagonal. Next, find the area of the two triangular faces, using the formula for the area of a triangle: 1/2 base x height. Find the areas of each of the three rectangular faces, using the formula for the area of a rectangle: length x width. Online calculator to calculate the surface area of geometric solids including a capsule, cone, frustum, cube, cylinder, hemisphere, pyramid, rectangular prism, sphere, spherical cap, and triangular prism Here are the steps to compute the surface area of a triangular prism: 1.

Total surface area of prism calculator