1. Use Euler's formula to find the missing number.
Vertices: 18
Edges: 22
Faces: ?
(1 point)
Responses
4
4
5
5
6
6
8
The formula is V - E + F = 2, where V is the number of vertices, E is the number of edges, and F is the number of faces.
Plugging in the values given: 18 - 22 + F = 2
Solving for F:
18 - 22 + F = 2
-4 + F = 2
F = 6
Therefore, the missing number of faces is 6.
Correct answer: 6.