The figure is made up of straight lines. Given that ∠r is twice that of ∠t, find
- ∠r
- ∠s
- ∠t
(a)
∠r = 82° (Vertically opposite angles)
(b)
∠s
= 180° - 82° - 41°
= 57° (Angles on a straight line)
(c)
∠t
= 82° ÷ 2
= 41°
Answer(s):(a) 82°; (b) 57°; (c) 41°