33.
We have an isosceles triangle, which means that two of the sides of the triangle are equals, the same is with the angles
side LM= side MN
angle L =angle N
Also we need to remember that the sum of the interior angles of a triangles is 180°
angle M=120
angle N=x
angle L=x
120+x+x=180
2x=180-120
2x=60
x=60/2
x=30
m < M =120°
m< N=30°
