Question

A polyhedron has 6 vertices and 9 edges. How many faces does it have?

3
5
7
9

Answer 1

Use Eulear's Formula...

\(\Huge{F+V=E+2}\)

Input and then simplify...

Answer 2

what???

Answer 3

\(\Large{F}\)ace

\(\Large{V}\)ertices

\(\Large{E}\)dges

We input what we know of which is the vertices and the edges...

\(\Huge{F+6=9+2}\) We need to simplify to solve for \(\Large{E}\)...

\(\Huge\color{purple}{F+6=11 \rightarrow \color{red}{ 11-6=F}}\)

Answer 4

OHHHH, 5!!

Answer 5

Yup

Answer 6

I totally get it now!!! This is sooo easy ^-^ Thank you