Question

Can someone please help me fill in the blank:
Two similar pyramids have heights of 4 and 10. The ratio of their volumes is_____.
Answers provided:
(A) 2:5 (B) 6:15 (C) 4:25 (D) 8:125 (E) None of these.

Answer 1

e because the answer would be 65;100 the broken down

Answer 2

Thanks so much! But how do you solve for the problem though?

Answer 3

ok you square each number which is how i got 64:100 then you break it down since it is divisible by 4. Then you have 16/25=what ever the surface area is times pi.

Answer 4

but if you squared it wouldn't it be 16:100