Answer:
If you are talking about the rectangular prism the equation is
2 × L × W + 2 × L × H + 2 × W × H
If you are talking about Triangular prism the equation is
B × H + L × S + L × B + L × C
If you are trying to find where he is the answer is -29.7
Hope this helps!
Step-by-step explanation:
42 ÷ 7 = 6