The figure is made up of straight lines. Given that ∠q is twice that of ∠s, find
- ∠q
- ∠r
- ∠s
(a)
∠q = 80° (Vertically opposite angles)
(b)
∠r
= 180° - 80° - 40°
= 60° (Angles on a straight line)
(c)
∠s
= 80° ÷ 2
= 40°
Answer(s):(a) 80°; (b) 60°; (c) 40°