A polyhedron has 5 faces and 5 vertices. How many edges does it have?
We can solve the above question by using Euler's Formula
Answer: A polyhedron with 5 faces and 5 vertices will have 8 edges
Every polyhedron follows Euler's Formula
Euler's formula states that the number of faces plus the number of vertices minus the number of edges for a polyhedron will always be equal to 2.
F + V - E = 2
Here: F = 5, V = 5
5 + 5 - E = 2
E = 10 - 2 = 8