Question

the radius of sphere A is twice that of a sphere B find
the ratio among their volumes​

Answer 1

Answer:

Given,

For sphere A ,

radius = 2r

For sphere B,

radius = r

Step-by-step explanation:

volume of sphere A = 4/3 πr^3

=4/3×π×2r^3

= 8×4/3πr^3

volume of sphere b = 4/3πr^3

Ratio of vol. = 8×4/3πr^3÷4/3πr^3

=8:1

therefore, ratio of their volume is 8:1.