Explanation:
Working off what the person below did, one way to figure it out is by taking the lines (A straight line is 180*)
So to figure it out you have the 121*, and that little segment next to it.
So 180*-121*= 59*. And since that little segment/corner is a vertical angle, You move the 59* Into the little corner in the triangle.
Same with 144*, it has a little segment next to it.
So 180*-144*=36*. Move that in.
A triangle is 180* on the inside. So 180*-36*-59*=85*. That is the last corner INSIDE the triangle.
Move that OUT.
it's in the little segment/corner next to n and it's on a line, So 180*-85*=95*
n=95*.