Trigonometry (10th Edition)

$106^{\circ}, 30^{\circ}, 44^{\circ}$
1. These angles marked as congruent, so have the same measure $\angle B=\angle K=106^{\circ}$ $\angle C= \angle N= 30^{\circ}$ 2. To find third angle we need to remember that angle in the triangle sum up to 180 degrees $\angle A= \angle M= 180^{\circ}-106^{\circ}-30^{\circ}=44^{\circ}$