No, Triangle VNU is not similar to triangle MNL because the corresponding angles are not equal.
Similar triangles are triangles with equal corresponding angles and equal side ratios . This means that the ratio of the corresponding sides are equal.
angle VNU = angle MNL ( vertical angles)
angle VNU = 52°
angle V = 180 -( 52 + 68)
angle V = 180 - 120
angle V = 60°
angle L = 180 - ( 52 + 72)
angle L = 180 - 124
angle L = 56°
since angle L is not equal to angle V then the triangles are not similar.