The figure is made up of straight lines. Given that ∠k is twice that of ∠n, find
- ∠k
- ∠m
- ∠n
(a)
∠k = 78° (Vertically opposite angles)
(b)
∠m
= 180° - 78° - 39°
= 63° (Angles on a straight line)
(c)
∠n
= 78° ÷ 2
= 39°
Answer(s):(a) 78°; (b) 63°; (c) 39°