12
No, it is the other way around. The total number of edges is twice the number of edges on the base.
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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6
Assuming a triangular base, i.e. a tetrahedron, the minimum number of edges is 6.
A pyramid cannot have 13 edges: it must have an even number of edges.
There are actually more than a pyramid that have that number of edges. Pentagonal star pyramid has 20 edges. Decagonal pyramid is another one.
That would be 2 times the number of sides in the base. For example, a triangular pyramid has 6 edges. A rectangular pyramid has 8 edges. An octagonal pyramid has 16 edges.
Twenty edges
It depends on the base of the pyramid. To find it, add the number of edges of the vertices is of the base to its number of edges. Example: for a square pyramid, there is 4 vertices and 4 edges in the base. The Edges of the pyramid is then 4+4 which equals 8.
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Its shape, the number of faces edges and vertices.
No, it is the other way around. The total number of edges is twice the number of edges on the base.
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).
6
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