Question

http://prntscr.com/b5yv42

Check my answer

Answer 1

Use Eulear's Formula....

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

F for faces
V for Vertices
E for Edges

Answer 2

So we would plug in what we already know....

\(\Huge{12+V=20+2}\)

We would simplify that...

\(\Huge{12+V=22}\)

Now to find V we would subtract 12 from both sides...

\(\Huge{V=22-12}\)

Answer 3

Ooo wait yes you are right i didnt see that sorry

Answer 4

Haha. Medal anyways for effort!

@563blackghost