Question

find the no of vertices where the no. of faces is 20 and no.of edges is 30

Answer 1

Answer:

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

Answer 2

Your Answer:

a = 30..

Bye