The radii of two hemisphere is r:2r ,then the ratio of TSA is Question The radii of two hemisphere is r:2r ,then the ratio of TSA is in progress 0 Math Alexandra 3 weeks 2021-09-05T05:48:29+00:00 2021-09-05T05:48:29+00:00 1 Answer 0 views 0

## Answers ( )

Answer:

Step-by-step explanation:

Let radius of two hemisphere be r1 & r2

Ratio of radii of two hemisphere are r:2r.

So, ratio of their TSA = 3πr1^2/3πr2^2

=r1^2/r2^2

=1^2/2^2

=1/4. =>1:4.

Answer