Question

2. If a polyhedron has 19 vertices and 13 faces, how many edges does it have?

Answer 1

30 Edges.

Explanation:

Euler's formula tells us that
`V-E+F=2` (Vertices - edges + faces = 2).

Plug the numbers in:

`19-E+13=2`

Solve:

`32-E=2`

`32=2+E`

`30=E`

Therefore, there are 30 edges.