the radius of hemisphere is 2r . find its volume.
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Answer:
Given, radius of a sphere = 2r
Volume of a sphere =4/3 π(Radius)3
= 4/3 π(2r)3 = 4/3 π 8r3
= (32 πr3)/3 cu units
Hence the volume of a sphere is (32 πr3)/3 cu units.
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Answer:
Volume of Hemisphere = 16/3 πr³
Step-by-step explanation:
As we know that clearly,
Radius of hemisphere, r = 2r
Now, we have to find the volume of hemisphere.
As we know that,
=> Volume of Sphere = 4/3 πr³
We know that, when we cut the sphere into two parts. The half part of the sphere is called hemisphere. So, the volume of the hemisphere is just half of the volume of the sphere.
=> Volume of Hemisphere = 1/2 (Volume of sphere)
=> Volume of Hemisphere = 1/2 × 4/3 πr³
=> Volume of Hemisphere = 2/3 πr³
Now,
putting the values to solve the question
=> Volume of Hemisphere = 2/3 π (2r)³
=> Volume of Hemisphere = 16/3 πr³
Hope! You will understand.