J1 - J2 - J3
Its height H, from the midpoint of the pentagonal face to the apex, (as a function of a, where a is the side length), can be computed as:
, while its surface area, A, can be computed as:
More generally an order-2 vertex-uniform pentagonal pyramid can be defined with a regular pentagonal base and 5 isosceles triangle sides of any height.
The volume of a pentagonal pyramid is:
- Virtual Reality Polyhedra www.georgehart.com: The Encyclopedia of Polyhedra ( VRML model)
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