Question

Find the surface area of a triangular prism that has a height of 11 meters and the following triangular base. All dimensions are in meters.

surface area = ___ m2

Answer 1

surface area = 146 m2

Explanation:

The total surface area of a triangular prism consists of 2 equal traingle bases and 3 equal rectangle walls. Hence we can calculate the base area (
`(1)/(2)` * 4 * 3.5 = 7) and the wall area (4 * 11 = 44) and sum them up in the end (2 * 7 + 3 * 44 = 146).