Question

Use euler's formula to find the missing number

vertices: 11
edges: 34
Faces: ?

Answer 1

F = 25

Explanation:

Euler's formula for polyhedra states that

F + V - E = 2

Here V = 11, E = 34, thus

F + 11 - 34 = 2

F - 23 = 2 ( add 23 to both sides )

F = 25