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Frustum of a pyramid

The sides of the bases are entered one at a time, not their areas.

How it is calculated

The bases are square and parallel. Rectangular bases with sides that differ use another formula.

V = h / 3 × (a² + ab + b²)

Where the numbers come from

  • Lower side
  • Upper side
  • Height

Example

Bottom side 4, top side 2, height 3. Volume 3 / 3 × (16 + 8 + 4) = 28.

Questions

An upper side of 0?

You get the volume of an ordinary pyramid with a square base.

Is the height diagonal?

No, the height is the perpendicular between the bases.

Volume units?

If the sides are in meters, the volume is in cubic meters.