Question

The surface area of a sphere is 616 cm². What is the radius of the sphere? Use - 7 cm # 14 cm 21 cm 28 cm for the value of T​

Answer 1

surface circle sphere = pir²

616 = 22/7*r²

616*7 = 22r²

4312 = 22r²

r²=4312/22=196

r=√196 = 14

radius : 14cm

Explanation: