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A square based pyramid has 8 edges: One for each side of the square, and one from each corner of the square going up to the point.
A triangular pyramid has 4 vertices (each vertex has 3 edges connected to it).
A rectangular pyramid has 8 edges. There are four edges on the base and for edges from corner to point.
8 Four edges on the square base and then four more leading up from each corner to the apex.
A heptagon is a figure with 7 sides. Also, if by corner you mean edges, we can find that. There's the edges of the heptagonal base. So there's 7. Then we have the edges of where the lateral faces meet each other. There's another 7. You have 14 edges in a heptagonal pyramid. If, in fact, you meant "corners", then we add in the vertex (or apex) of the pyramid. Then you will have 15 "corners".
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.
a pyramid has 8 edges
16 edgesThere are 8 edges around the base and 8 edges from each vertex of the base to the top of the pyramid giving a total of 16 edges.
none its how many edges does a corner have
A pyramid has one more corner and faces than the number of sides in its base; thus a decagonal pyramid has 10 + 1 = 11 faces and corners. A pyramid has twice as many edges as sides in its base; thus a decagonal pyramid has 2 X 10 = 20 edges.
8 edges * * * * * Not necessarily. A triangular pyramid has 6 edges. A heptagonal pyramid had 14 edges and so on.
16 edges- the edges of the base, and the edges leading to the point of the pyramid.