Question

7. Find the number of vertices of a polyhedron
having 10 faces and 12 edges​

Answer 1

4

Explanation:

Using Euler's rule for polyhedra

F + V - E = 2 ( F - faces, V- vertices, E- edges )

10 + V - 12 = 2

V - 2 = 2 ( add 2 to both sides )

V = 4