Question

Use euler’s formula to find the missing number faces :20 edges : 30 vertices ______

Answer 1

Explanation:

the answer is 12, on jeeb

Answer 2

8 Faces

Explanation:

The Euler’s formula is:

V-E+F=2

Where V is number of vertices, E is number of edges and F is number of faces.

In our example, E=20, V=30, so we have:

30-20+F=2

10-F=2

F=8