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Frustum of a Cone or Pyramid

Frustum of a Cone or Pyramid

A truncated cone or pyramid in which the plane cutting off the apex is parallel to the base.

Note: the word is frustum, not frustrum.

 

Frustum diagram with variables r (upper base radius), R (lower base radius), s (slant height), h (height), showing volume,...

 

 

See also

Slant height, volume, lateral surface area, surface area