By the Euler characteristic for polyhedra, F + V = E + 2
where F = # faces, E = # egdes, V = # vertices.
The equation implies that E - V = F - 2
Thus, if the polyhedron solid has more than two faces (it must have at least 4) then the right hand side is positive. So the left hand side must be positive. That is, E must be greater than V.
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True. A cube has 12 edges and 8 vertices.
pyramid
yes. a cube has 12 edges and 8 verticies
A triangular dipyramid (two tetrahedrons or triangular pyramids stuck together) has 9 edges and 5 vertices. A parallelepiped (including cuboid) has 12 edges and 8 vertices
43 moreVertices:5 Edges:8 so 8-5=3 more edges