Question

Find the surface area of sphere whose radius 21cm​

Answer 1

Hi buddy

Here is your answer

R=21

4x 22/7 x21 x 21

=5544

Answer 2

Answer:

Radius = 21cm

Step-by-step explanation:

Surface area of sphere = 4pie r^2

= 4× 22/7 × 21 × 21

= 5544cm^2 ans.....