The figure is made up of straight lines. Given that ∠r is four times that of ∠t, find
- ∠r
- ∠s
- ∠t
(a)
∠r = 88° (Vertically opposite angles)
(b)
∠s
= 180° - 88° - 22°
= 70° (Angles on a straight line)
(c)
∠t
= 88° ÷ 4
= 22°
Answer(s):(a) 88°; (b) 70°; (c) 22°