A planar graph has: 4 faces and 5 vertices. Calculate the number of edges using Eulers Formula for Planar Geometry

A planar graph has:

4 faces and 5 vertices.

Calculate the number of edges using

Eulers Formula for Planar Geometry

Eulers Formula Drawing

Draw a planar graph

Include zero edge intersections

with v vertices, e edges and f faces

Eulers Formula

v - e + f = 2

Calculate e

Rearranging Eulers Formula

e = v + f - 2

e = 5 + 4 - 2

e = 9 - 2

e = 7

You have 2 free calculationss remaining

What is the Answer?

e = 7

How does the Eulers Formula for Planar Geometry Calculator work?

Free Eulers Formula for Planar Geometry Calculator - This calculator solves for any one of the 3 following items using Eulers Formula for planar geometry:
* Vertices (v)
* Faces (f)
* Edges (e)

This calculator has 3 inputs.

What 1 formula is used for the Eulers Formula for Planar Geometry Calculator?

v - e + f = 2 where v = vertices, e = edges, and v = faces