Question

The figure (triangular prism) below has a height of 18 inches and a volume of 864 cubic inches. What is the area of the base of the figure? A. 7776 in B. 48 in C. 24 in D. 162 in

Answer 1

The answer is B.

Explanation:

It is given that the formule of volume of prism is V = a × h where a stands for area of cross-section. Then, substitute the following value into the formula :

V = 864 in³

h = 18 in

a = ?

864 = a × 18

Next, you have to make a as the subject by dividing 18 on both sides :

864 ÷ 18 = a × 18 ÷ 18

48 = a

a = 48 in²