Question

What is the total surface area of the triangular prism? Round to the nearest hundredth if necessary.

Answer 1

171.5 sqft

Explanation:

There are 5 surfaces:

2 surfaces as triangle, each with area = 5 x 4.3 /2 = 10.75sqft

3 suraces as rectangle, each with area = 10 x 5 = 50sqft

Total surface area = 50 x 3 + 10.75 x 2 = 150 + 21.5 = 171.5 sqft