Given the figure, find
- ∠s
- ∠r
(a)
∠TUY
= 180° - 128°
= 52° (Angles on a straight line)
∠s = 52° (Alternate angles)
(b)
∠YXU
= 180° - 112°
= 68° (Angles on a straight line)
∠r
= 180° - 68° - 77°
= 35° (Angles sum of triangle)
Answer(s): (a) 52°; (b) 35°