Question

if the surface area of sphere is 616 cm2 finds its radius

Answer 1

Surfa area of sphere = 4 x Pie x r^2
4 x Pie x r^2 = 616
4 x 22/7 x r^2 = 616
r^2 = 616 x 1/4 x 7/22
r^2 = 154 x 7/22
r^2= 1078/22
r^2= 49
r = 7

Hence the radius is 7

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Answer 2

Answer:

Surface area of sphere = 4 x Pi x r^2

4 x Pi x r^2 = 616

4 x 22/7 x r^2 = 616

r^2 = 616 x 1/4 x 7/22

r^2 = 154 x 7/22

r^2= 1078/22

r^2= 49

r = 7

Hence the radius is 7

Explanation: