Question

Ladies and Gentlemen, please help me out.

Answer 1

I

$a = (( \frac{1}{2} \times b \times h) \times 2) + ((4 \times 9) \times 3) \\ a = (( \frac{1}{2} \times 4 \times 3.5) \times 2) + ((4 \times 9) \times 3) \\ a = (7 \times 2) + (36 \times 3) \\ a = 14 + 108 \\ a = 122$

the area of the triangular prism is 122 square inches.