Because prisms have two congruent bases its easy to calculate their surface area. The surface area of a three-dimensional object is the total area of all of its sides added together. Total surface area of a prism includes the area of the top and.
In a triangular prism to find the surface area we want to add up the areas of the two.
Use the formula A05 baseheight to get the area for each triangle. The surface area of the triangular prism is the sum total of the areas of its bases and its lateral faces. Enter the triangles. In a triangular prism to find the surface area we want to add up the areas of the two.