Where Did the Frustum Come from?

It is formed by a clipped pyramid; in particular, frustum culling is a method of hidden surface determination. In the aerospace industry, a frustum is the fairing between two stages of a multistage rocket (such as the Saturn V), which is shaped like a truncated cone.

How is a frustum formed?

A frustum may be formed from a right circular cone by cutting off the tip of the cone with a cut perpendicular to the height, forming a lower base and an upper base that are circular and parallel. ... Let h be the height, R the radius of the lower base, and r the radius of the upper base.

Is frustum a Greek word?

Borrowed from Latin frustum (“morsel”).