WOLFRAM|DEMONSTRATIONS PROJECT

Cylinder Hemisphere Cone

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cylinder
cone
The volume of a cylinder C of radius r and height h is
V(C)=π
2
r
h
. The volume of a cone K with the same dimensions is
V(K)=1/3π
2
r
h
. If
r=h
, the volumes simplify to
V(C)=π
3
r
and
V(K)=1/3π
3
r
. The volume of a hemisphere H of radius r is
V(H)=2/3π
3
r
. Therefore, in terms of volume,
C=H+K
. Move the sliders to assemble a cylinder from its parts.