Question

The surface area of a sphere is 616 sq. cm. what is its volume? ( π = 22\7)

Answer 1

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Surface area of Circle = 4πr^2
616 = 4 x 22/7 x r^2
616 x 1/4 x 7/22 = r^2
49 = r^2
r = 7cm
Volume = 4/3 x π x r^3
= 4/3 x 22/7 x 7 x 7 x 7
= 1437.33 cm^3

Answer 2

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