Question

Greg has two porcelain spheres. The radii of the spheres are in a ratio of 3 : 4.
What is the ratio between the volumes of the two spheres?
A.) 9 : 16
B.) 27 : 64
C.) 9 : 64
D.) 27 : 32

Answer 1

@Callisto

Answer 2

2 spheres -> similar figures
For similar figures,
(ratio of sides)^3 = ratio of volumes
So,
\[(\frac{3}{4})^3 = ratio\ of\ volume\]
Can you simplify it and get the answer?

Answer 3

27/64?

Answer 4

Yes~

Answer 5

It should be :)

Answer 6

ok thank you :)

Answer 7

Welcome :)