Question

A polyhedron has 12 faces and 30 edges. What is the number of vertices of the polyhedron?

Answer 1

Use Eulers Formula - see here: http://www.mathsisfun.com/geometry/eulers-formula.html

Answer 2

i dont understand

Answer 3

have you read the information on that linked page?

Answer 4

yes

Answer 5

what exactly don't you understand?

Answer 6

\(V+E-F=2 \)

This is also known as Euler characteristic and it is used and it does not hold for curve surfaced solid.

Answer 7

i just dont know how to put it all together.

Answer 8

For your problem F=12,E= 30, substitute and find V.