Pyramids With Regular Polygon Faces
The regular tetrahedron, one of the Platonic solids, is a triangular pyramid all of whose faces are equilateral triangles. Besides the triangular pyramid, only the square and pentagonal pyramids can be composed of regular convex polygons, in which case they are Johnson solids.
| Tetrahedron | Square pyramid | Pentagonal pyramid | Hexagonal pyramid |
|---|---|---|---|
Read more about this topic: Pyramid (geometry)
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