3 years ago

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

1 answer:

5 0

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

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