Question

A polyhedron has 20 faces and 12 vertices. Find the edges of the polyhedron.

Answer 1

As per question:
Euler's Formula is for any polyhedrons. i.e.
F + V - E = 2
Given, F = 20 and V = 12 and E = a
According to the formula:
20 + 12 - a= 2
32 - a = 2
a = 32 - 2
a = 30