Answer:
Step-by-step explanation:
In parallelogram, sum of adjacent angles = 180
x +15 + 6x - 10 = 180
x +6x + 15 - 10 = 180
7x + 5 = 180
7x = 180 - 5
7x = 175
x = 175/7
x = 25
∠Q = x + 15 = 25+ 15 = 40°
∠R = 6x - 10 = 6*25 - 10 = 140
In parallelogram, opposite angles are equal
∠P = ∠R = 140°
∠S =∠R = 40°
