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The surface area of a sphere is 616m2. what is the volume...

The surface area of a sphere is 616m2. what is the volume of-the sphere (correct to two significant figures)? (take π = 3.142)

A.

14 cm3

B.

210 cm3

C.

1,400 cm3

D.

2,100 cm3

E.

4,300 cm3

Correct answer is C

Surfacearea(A)=4πr2=616m2

solving, we have

r=7m

Volume=43πr3

Volume=4×3.142×733

Volume=4310.8243

= 1436.941m3