The figure is made up of straight lines. Given that ∠x is thrice that of ∠z, find
- ∠x
- ∠y
- ∠z
(a)
∠x = 81° (Vertically opposite angles)
(b)
∠y
= 180° - 81° - 27°
= 72° (Angles on a straight line)
(c)
∠z
= 81° ÷ 3
= 27°
Answer(s):(a) 81°; (b) 72°; (c) 27°