PSLE In the figure, CDEF is a rectangle. The points H, J, and K lie on the rectangle CDEF. FGH and KGJ are straight lines.
- Find ∠HJG.
- Find ∠GFK.
(a)
∠DJK = ∠FKJ = 86° (Alternate angles)
∠HJG
= 86° - 54°
= 32°
(b)
∠HGJ
= 180° - 92° - 32°
= 56° (Angles sum of triangle)
∠FGK = 56° (Vertically opposite angles)
∠ GFK
= 180° - 86° - 56°
= 38° (Angles sum of triangle)
Answer(s): (a) 32°; (b) 38°