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Volume

The volume of a 3 -dimensional solid is the amount of space it occupies.  Volume is measured in cubic units ( in 3 , ft 3 , cm 3 , m 3 , et cetera).  Be sure that all of the measurements are in the same unit before computing the volume.

The following table gives the formulas for the volumes of some common solids.  Here, r denotes the radius of the figure, h denotes the height, B denotes the area of the base, and, in the case of the torus, R denotes the distance from the center of the torus to the center of the tube.

Solids
Volume
Figure
Prism

V = B h

Cube

V = s 3

Pyramid
V = 1 3 B h
Cylinder

V = π r 2 h

Cone
V = 1 3 π r 2 h
Sphere
V = 4 3 π r 3
Ellipsoid
V = 4 3 π r 1 r 2 r 3

Torus

2 π 2 R r 2