Question

Find the number of faces a polyhedron has if it has 20 edges and 15 vertices.

Answer 1

Answer:

The Number of Faces is 7 .

Step-by-step explanation:

According to Euler's Formula :-

Face + Vertices = Edges + 2 ,

Keeping edges and vertices in place and Let's take the number of Faces as f ,

=> f + 15 = 20 + 2

=>  f = 22 - 15

=> f = 7

The Number Of faces of the polyhedron is 7.