Question

Please help!
Using Euler's formula, find the number of edges in a polyhedron with 7 faces: 2 pentagons and 5 rectangles.
Can someone please explain this. I am lost.

Answer 1

Answer:

Eulers formula of course is:  F+ V - E = 2, (F)aces + (V)ertices - Number of (E)dges = 2. Which he derived from solving the Koningberg Bridge problem.

I dont know if this will be of help: pentagonal prism https://en.wikipedia.org/wiki/Pentagonal_prism. it seems to fit what you are looking for!

Step-by-step explanation: