The figure is made up of straight lines. Given that ∠c is thrice that of ∠e, find
- ∠c
- ∠d
- ∠e
(a)
∠c = 78° (Vertically opposite angles)
(b)
∠d
= 180° - 78° - 26°
= 76° (Angles on a straight line)
(c)
∠e
= 78° ÷ 3
= 26°
Answer(s):(a) 78°; (b) 76°; (c) 26°