Question

had the diameter of asphere been decreased by 2 cm .it's surface area would have diminished by 113.04 cm. find the surface area of the sphere​

Answer 1

Your Answer is in the Attachment ✌️

Answer 2

Step-by-step explanation:

The radius then decreases by 1 cm

4πR2 - 4π(R - 1)2 = 113.04

R2 - R2 + 2R - 1 = 113.04/(4π) = 8.9954

2R - 1 = 8.9954

R = (1+8.9954)/2 = 4.9977

The original surface area was

4πR2 = 4π(4.9977) cm2 = 62.803 cm2