Use Euler's Formula to find the missing number

Question

Faces:27
Vertices:20

What is the number of edges?

Answer 1

Using Euler's Formula (V - E + F = 2), we can plug in the given values and solve for the missing number:

20 - E + 27 = 2
47 - E = 2
-E = -45
E = 45

Therefore, the number of edges is 45.