The figure is made up of straight lines. Given that ∠x is four times that of ∠z, find
- ∠x
- ∠y
- ∠z
(a)
∠x = 84° (Vertically opposite angles)
(b)
∠y
= 180° - 84° - 21°
= 75° (Angles on a straight line)
(c)
∠z
= 84° ÷ 4
= 21°
Answer(s):(a) 84°; (b) 75°; (c) 21°