Question

if the radius of a sphere is double, then find the ratio of their volumes​

Answer 1

Answer:

1:8

Step-by-step explanation:

the volume of the sphere is doubled

let it be 2r

the formula for volume is (4/3)*pi*$r^{3}$

(4/3)*pi*$(2r)^{3}$

(4/3)*pi*$r^{3}$*8

the original volume is (4/3)*pi*$r^{3}$

the ratio of their volumes​ will be 1:8