## Trigonometry (10th Edition)

$64^{\circ}, 20^{\circ}, 96^{\circ}$
1. These angles are marked as congruent, so they have the same measure $\angle Q= \angle V= 64^{\circ}$ $\angle P= \angle T= 20^{\circ}$ 2. To find third angle we apply the rule that sum of angles of a triangle is 180 degrees $\angle R= \angle U= 180^{\circ}-20^{\circ}-64^{\circ}=96^{\circ}$