Truncated Square Pyramid
The truncated square pyramid is a special case of a Pyramidal Frustum for a Square Pyramid.Let the base and top side lengths of the truncated pyramid be 
and 
, and let the height be 
. Then the Volume of the solid is
This BC.
The Egyptians cannot have proved it withoutcalculus, however, since Dehn showed in 1900 that no proof of this equation exists which does not relyon the concept of continuity (and therefore some form of Integration).See also Frustum, Pyramid, Pyramidal Frustum, Square Pyramid- Hyperbolic Map
- Hyperbolic Metric
- Hyperbolic Octahedron
- Hyperbolic Paraboloid
- Hyperbolic Partial Differential Equation
- Hyperbolic Plane
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- Hyperbolic Spiral Inverse Curve
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- Hyperboloid
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- Hypercomplex Number
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- Hyperdeterminant