Answer:
320 cubic feet
Step-by-step explanation:
The volume is proportional to the product of the area of the base and the height of the pyramid. When the dimensions of the base are doubled, the area is multiplied by 2² = 4, hence the volume of the pyramid will be multiplied by 4.
4 × (80 ft³) = 320 ft³
The new volume of the pyramid is 320 cubic feet.
Answer:
D. 320
Step-by-step explanation:
Sorry for the very late response. But if anyone wasn't sure if 320 is correct, it is. I can confirm this because I just took the test. I hope I could help! (:
