In the diagram shown, GHJ is a right-angled triangle and GH = HJ = GK. Find
- ∠KGJ
- ∠GKH
(a)
∠GJH
= (180° - 90°) ÷ 2
= 45° (Isosceles triangle)
∠KGJ
= 45° - 27°
= 18°
(b)
∠GKH
= (180° - 27°) ÷ 2
= 76.5° (Isosceles triangle)
Answer(s): (a) 18°; (b) 76.5°