Use Euler's formula to find the missing number.

Question

Vertices: 18

Edges: 22

Faces: ?

(1 point)
Responses

4
4

5
5

6
6

8

Answer 1

The formula is V - E + F = 2.

Plugging in the values:
18 - 22 + F = 2
F = 2 + 22 - 18
F = 6

Therefore, the missing number of faces is 6.

Correct answer: 6