In the diagram shown, DEF is a right-angled triangle and DE = EF = DG. Find
- ∠GDF
- ∠DGE
(a)
∠DFE
= (180° - 90°) ÷ 2
= 45° (Isosceles triangle)
∠GDF
= 45° - 33°
= 12°
(b)
∠DGE
= (180° - 33°) ÷ 2
= 73.5° (Isosceles triangle)
Answer(s): (a) 12°; (b) 73.5°