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# Spherical cap volume

## Description

n geometry, a spherical cap, spherical dome, or spherical segment of one base is a portion of a sphere cut off by a plane. If the plane passes through the center of the sphere, so that the height of the cap is equal to the radius of the sphere, the spherical cap is called a hemisphere.

If the radius of the base of the cap is a {\displaystyle a} a, and the height of the cap is h {\displaystyle h} h, then the volume of the spherical cap is as shown here.

Related formulas

## Variables

 V volume of the spherical cap (m3) π pi h height of the cap (m) a radius of the base of the cap (m)