Question

1. If radius of a sphere is doubled then its volume becomes
times.​

Answer 1

eight times!!

Hope this helps you!! :)

@prashansa45

Answer 2

Step-by-step explanation:

Correct option is

D

eight times

Let the radius of sphere is r

Then volume of sphere =

3

4

πr

3

If radius of sphere is doubled then radius is 2r

Then volume of new sphere =

3

4

π(2r)

3

=

3

4

×8r

3

Then ratio of new and old sphere=

3

4

r

3

3

4

×8r

3

=

1

8

Then the radius of sphere is doubled then volume become eight times