If you imagine a square-based pyramid sitting on its base, there will be the four corners of the square, plus the top: a square-based pyramid has five corners.
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A triangular based pyramid would have 4 corners; three for the triangular base and one for the peak. A pyramid has twice as many edges as sides in its base; thus a triangular pyramid has 2 × 3 = 6 edges. A triangular based pyramid is called a tetrahedron.
5 faces 8 edges 5 corners (vertexes) * * * * * Wrong! The answer given above is for a SQUARE based pyramid. A triangle based pyramid, or a tetrahedron, has 4 faces, 6 edges and 4 corners (vertices).
It depends on the shape of the base. A pyramid that has a base with n vertices (an n-gon) will have n+1 vertices in all.
5 a square base with 4 corners and an
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