Answer:
135°, 45°, 45°
Step-by-step explanation:
The opposite angles in a parallelogram are congruent, thus
∠ R = ∠ T = 135°
Consecutive angles are supplementary , sum to 180°, then
∠ S + ∠ T = 180° , that is
∠ S + 135° = 180° ( subtract 135° from both sides )
∠ S = 45°, then
∠ Q = 45° ( opposite and congruent to ∠ S )
