Question

what is the volumn of a sphere with the folling surface areas 81 pi m2

Answer 1

Answer:

4πr^2=81π

4r^2=81

r^2=81/4

r=√81/4

r=9/2

volume=4/3πr^3

=4/3×22/7×9/2×9/2×9/2

2673cm^3

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