Question

I need help with letter C, find the area

Answer 1

x = 38

Explanation:

Here, we can use the area formula A = 0.5(Bh) to solve for x.

In this case, A = 399, B = x, and h = 21

`399 = (21)/(2) x\\x = (2*399)/(21) \\x = 38`