Question

If the ratio of the two solid sphere is 1:8 the ratio of there CSA is what

Answer 1

Answer:

1:4

Step-by-step explanation:

Let the radious of two circle be R and r

According to the problem,

4πR^3/3:4πr^3=1:8

or R^3:r^3=1:8

Or, R:r=1:2

R=x. r=2x

Now ratio of their CSA will be -

4πR^2:4πr^2

=4π (x)^2 :4π(2x)^2

=1:4