PSLE In the figure, BCDE is a rectangle. The points G, H, and J lie on the rectangle BCDE. EFG and JFH are straight lines.
- Find ∠GHF.
- Find ∠FEJ.
(a)
∠CHJ = ∠EJH = 82° (Alternate angles)
∠GHF
= 82° - 52°
= 30°
(b)
∠GFH
= 180° - 90° - 30°
= 60° (Angles sum of triangle)
∠EFJ = 60° (Vertically opposite angles)
∠ FEJ
= 180° - 82° - 60°
= 38° (Angles sum of triangle)
Answer(s): (a) 30°; (b) 38°