Question

The ratio of the volumes of two solid spheres is 1 : 8. What is the ratio
of their radii?​

Answer 1

Answer:

1:2

Step-by-step explanation:

let the radius of 1st and 2nd sphere be r1 & r2 respectively.

vol of 1st sphere/vol of 2nd sphere = 1/8

{4/3π(r1)^3}/ {4/3π(r2)^3 = 1/8

(r1)^3/ (r2)^3 = 1/8

{r1/r2}^3 = {1/2}^3

r1/r2 = 1/2

ratio of radius = 1:2