Answer:
2520 in³
Step-by-step explanation:
The volume of a prism is calculated as
V = Ah ( A is the area of the base and h the height )
A = [tex]\frac{1}{2}[/tex] bh( b is the base and h the height ), thus
A = [tex]\frac{1}{2}[/tex] × 14 × 18 = 7 × 18 = 126 in²
V = 126 × 20 = 2520 in³
