Question

The ratio of radii of two sphere is 2:3 find the ratio of their surface areas and volumes​

Answer 1

Answer:

1. 4:9
2. 4:98:27

Step-by-step explanation:

Given the ratio of radii of two sphere is 2:3

Let the radius of two-sphere is 2r and 3r

Then the ratio of the surface area of two  spheres

=4π(2r)^2:4π(3r)^2

⇒4:9

Then, ratio of volume of  two spheres

=4/3 π(2r)^3 : 4/3 π(3r)^3

⇒8:27