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What is the volume of a sphere if it's greater circle has an area of 9pi cm?

What is the volume of a sphere if it's greater circle has an area of 9pi cm?
asked 90.2k views
3 votes
What is the volume of a sphere if it's greater circle has an area of 9pi cm?

asked
User Frostmatthew
by
9.3k points

1 Answer

1 vote
Area of circle = π · r²
9 π = π · r²
9 = r²
3 = r

Volume of sphere = (4/3)π · r³
= (4/3)π · (3)³
= 4π · 3²
= 4π · 9
= 36π

Answer: the volume of the sphere is 36π
answered
User RyanQuey
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7.2k points
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