The figure is made up of straight lines. Given that ∠j is thrice that of ∠m, find
- ∠j
- ∠k
- ∠m
(a)
∠j = 87° (Vertically opposite angles)
(b)
∠k
= 180° - 87° - 29°
= 64° (Angles on a straight line)
(c)
∠m
= 87° ÷ 3
= 29°
Answer(s):(a) 87°; (b) 64°; (c) 29°