A three-dimensional solid shape has 14 faces and 10 vertices. The number of edges it will have is ___.
Euler's formula is
F + V - E = 2
14 + 10 - E = 2
24 - E = 2
E = 22
So, the number of edges is 22
A three dimensional shape can have edges only if it has vertices.
If a polyhedron has 7 faces and 10 vertices, then it will have ___ number of edges.