You can use 6-2=4
You just Subtract the 2 from 6 and that gives 4
This is my answer for this question (- 201) x= -1. X=4
The answer is c mean = median
The exterior angles of a polygon all add to 360, if you need to find an exterior angle when given the number of sides and that all angles are equal you simply do: 360/ number of sides.
When you need to find the exterior angle when given an interior angle, you do: 180- interior angle.
Hope this helps :)
the height:

(with g being the gravitational acceleration)