Question

Pls can someone show me by step by step

Answer 1

Answer:

• The T.S.A of sphere is 4×22/7(pi)×r^2

1. Now put this value into formula we get
2. 154=4*22/7*r^2
3. 154*7/4*22=r^2
4. 1078/88=r^2
5. 12.25=r^2
6. root under 12.25=r
7. therefore r=3.5

Hope it will help you!!