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

Mathematician

2pie r^2

Tutor

2/3 r r r

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Just to make it easy for you, I am making this statements. Simply remember the area of the circle = pi*r^2. Multiply this by another radius quantity so it becomes = pi*r^3. Now just multiply with 4/3 to get the volume of the sphere= 4/2*pi*r^3. To get hemisphere volume just divide by two (Hemisphere... read more

Just to make it easy for you, I am making this statements.

Simply remember the area of the circle = pi*r^2.

Multiply this by another radius quantity so it becomes = pi*r^3.

Now just multiply with 4/3 to get the volume of the sphere= 4/2*pi*r^3.

To get hemisphere volume just divide by two (Hemisphere = half the sphere) so Hemisphere volume=2/3*pi*r^3 ( if you like to know the exact derivation of this quantity you can go through integral calculus).

Maths Tutor

151

Tutor

2 r r r

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