Question

I don't know if it's supposed to do with (n-2)180
Also please explain :D

Answer 1

Explanation:

`sum \: of \: interior \\ \: angels \: is  \: 2340 \:  degrees. \\ </p><p>(n−2)⋅180=2340 \\ </p><p>180n - 360=2340 \\ 180n = 2700 \\ </p><p>n=15 \\ </p><p> </p><p>number \: of \: sides=15`

the polygon is 15 sided.