Mathematics
If in a polyhedron, number of faces = 12 and number of vertices is 20, then the number of edges is :
10
20
30
40
Related Questions
A rectangular pyramid has :
4 vertices and 4 faces
6 vertices and 6 faces
7 vertices and 4 faces
5 vertices and 5 faces
If V stands for number of vertices, F stands for number of faces and E stands for number of edges, then :
V + F + E = 2
F + E - V - 2 = 0
F + V - E = 2
F - E + V + 2 = 0
If a polyhedron, has 10 vertices and 7 faces, find the number of edges in it.
State the number of faces, number of vertices and the number of edges of :
(i) a pentagonal pyramid
(ii) a hexagonal prism