10 root 2
10^2 + 10^2 = 200
200 is 10 root 2
Your answer should be 101°. 52+53+154= 259. 360-259= 101. Hope that helps
Sorry I can’t buddy........................................................:(
The sum of the interior angles of a triangle is 180. Add the three measures given and if you get 180 then those can be the interior angles of a triangle.