Question

find the radius of a sphere whose surface area is 314sq cm​

Answer 1

Answer:

4.22

Step-by-step explanation:

let radius be r

area or sphere = 4pier² (PIE=22/7)

314 = 4×22/7×r²

314 = 88/7×r²

314×7/88 =r²

266/11=r²

r²= 266/11

r = root 266/11