pentagonal antiprism, pentagonal deltohedron(not deltahedron), decagonal pyramid, and many more.
it has 80 that is the answer
it has 20 edges.
20 edges
20 faces, 30 edges
It has 20 edges.
40
There are actually more than a pyramid that have that number of edges. Pentagonal star pyramid has 20 edges. Decagonal pyramid is another one.
A heptagonal prism has 20 edges.
That would be 20 legs in total.
30 edges 20 vertices 12 faces.
It has twenty (20) vertices and thirty (30) edges
A decagonal based pyramid will have 11 faces, 11 vertices and 20 edges