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The number of edges of the triangular pyramid is eight but the number of faces is five.* * * * *Even though put in italics, the answer is wrong. It would have been correct for a square or rectangle based pyramid but NOT a triangular pyramid. The latter has 6 edges (and 4 triangular faces).
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Every face has 3 edges. CAUTION: DO NOT multiply the # of sides by 3, as that will not get you the # of edges. a triangular pyramid has 7 edges
None of the edges of a triangular pyramid is parallel to any of its other edges.
eight * * * * * A triangular pyramid has six edges: three edges that form the triangular base and then three more edges going up from each vertex of the base to the apex (peak) of the pyramid.