The figure is made up of straight lines. Given that ∠f is four times that of ∠h, find
- ∠f
- ∠g
- ∠h
(a)
∠f = 80° (Vertically opposite angles)
(b)
∠g
= 180° - 80° - 20°
= 80° (Angles on a straight line)
(c)
∠h
= 80° ÷ 4
= 20°
Answer(s):(a) 80°; (b) 80°; (c) 20°