find surface area of sphere of whose volume is 99/7cm 3 ?
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volume of sphere=4/3*pi* r^3-----(1)
given volume=99/7 cm^3---(2)
(1)=(2)
4/3*22/7*r^3= 99/7
r^3=(99*7*3)/(7*4*22)
r^3=(3/2)^3
r=3/2 cm
surface area of sphere=4*pi*r^2
=4*22/7*3/2*3/2
=22*3*3/7
=28.285 cm^2
given volume=99/7 cm^3---(2)
(1)=(2)
4/3*22/7*r^3= 99/7
r^3=(99*7*3)/(7*4*22)
r^3=(3/2)^3
r=3/2 cm
surface area of sphere=4*pi*r^2
=4*22/7*3/2*3/2
=22*3*3/7
=28.285 cm^2
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Answer:rong
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