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 = 87° (Alternate angles)
∠GHF
= 87° - 56°
= 31°
(b)
∠GFH
= 180° - 93° - 31°
= 56° (Angles sum of triangle)
∠EFJ = 56° (Vertically opposite angles)
∠ FEJ
= 180° - 87° - 56°
= 37° (Angles sum of triangle)
Answer(s): (a) 31°; (b) 37°