First :
Vertically opposite angles so 35 degree = 35 degree then sun of angles in a triangle is 180 degree so..
35+100+X=180
135+X=180
X=180-135
X=45 degree now find the exterior so it lies in a straight line which is 180 degree now…
180-45 = 135 degree is the answer
Hope you get it. Mark me as a brainliest :P
