The figure shows a rectangle DEFG. ∠DGH = 65° and ∠EGF = 42°. Find
- ∠EGH
- ∠DEG
(a)
∠EGH
= 65° + 42° - 90°
= 17° (Overlapping angles)
(b)
∠DGE
= 65° - 17°
= 48° (Overlapping angles)
∠DEG
= 180° - 90° - 48°
= 42° (Angles sum of triangle)
Answer(s): (a) 17°; (b) 42°