Answer:
1024π
Step-by-step explanation:
Took a quiz, got this answer right.
Here are the steps anyways:
64π cm² is the base area
The height is equal to twice the radius
1. Find radius: √64 (Which is 8)
2. Double the radius, 8×2=16
3. Multiply 16 and 64π, 16×64π=1024π
hopefully this was understandable, first time answering a question