Question

20 POINTS HURRY! The volume of a right square pyramid is 80 cubic feet. If the sides of the base are doubled, but the height remains the same, what is the new volume of the pyramid?

A. 160 ft.
B. 180 ft.
C. 240 ft.
D. 320 ft.

Answer 1

The answer is D 320ft

Explanation:

Answer 2

D. 320 ft³

Explanation:

The volume is proportional to the height and to the square of the base length. If the base length is doubled, the volume is multiplied by 2² = 4.

The new volume is ...

(80 ft³) × 4 = 320 ft³