The radius of a hemisphere is r. What is its volume?

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CSAT Tutor, BPSC DI Tutor (Ex. Drishti IAS Senior Content Writer)

Volume of hemisphere of radius r=(2πr³)/3 =Half of the volume of full sphere ((4πr³)/3) = 2π/3 times of volume of cube of side r.
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Math magician

2/3pie r cube
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Home Tutor

2/3•π•r^3
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Tutor

2/3.πr^3
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Math Magician

4/3 * 22/7 r^3 cubic unit
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The volume of a sphere is 4/3πr3. Since a hemisphere is half a sphere, the volume will be 2/3πr3. (where r stands for radius).
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2*pi* rad cube /3
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2/3 * pi * r cube
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2/3*pie*r*r*r
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Tutor

Hemisphere is half of a sphere. So,if volume of a sphere is 4/3 pie r'3 ..So,volume of hemisphere is half of the volume of the sphere =2/3 pie r'3
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