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