Math Homework. Do It Faster, Learn It Better.
Sphere
Asphereis the set of all points in space at a given distance from a given point. The given distance is called theradiusand the given point is thecenter.
Half of a sphere is called ahemisphere.
Thesurface area of a sphereistimes the square of the radius.
Example 1:
Find the surface area of a sphere with a radius ofcm.
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Thevolumeof a sphere is four-thirds pi times the cube of the radius.
Example 2:
Find the volume of a sphere with a radiuscm.