Question

David is making a model of a regular triangular prism.

Calculate the surface area of the prism.
__ inches squared

Answer 1

108.18 inches squared

1/2(4.2 x 4.5) = 9.45
9.45 x 2 = 18.9

4.5 x 4.2 = 18.9

6.3 x 6.3 = 39.69
39.69 x 2 = 79.38

18.9 + 18.9 + 79.38 = 108.18