For example, if you are starting with mm and you know r and h in mm, your calculations will result with V in mm 3 and S in mm 2.īelow are the standard formulas for surface area. Find the surface area of a triangular prism. This geometry video tutorial explains how to calculate the surface area of a triangular prism using a simple formula. Examples of a rectangular prism are geometry boxes, notebooks, diaries, rooms, and other places. ![]() ![]() Work out the surface area of the triangular prism. The formula for the surface area of a prism is the summation of the areas of the bases and the lateral faces. The units are in place to give an indication of the order of the results such as ft, ft 2 or ft 3. Example 1: finding the surface area of a triangular prism with a right triangle. Units: Note that units are shown for convenience but do not affect the calculations. The steps to determine the base area of the prism, if the volume of the prism is given, are: Step 1: Write the given dimensions of the prism. ![]() 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
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