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 = 85° (Alternate angles)
∠HJG
= 85° - 48°
= 37°
(b)
∠HGJ
= 180° - 91° - 37°
= 52° (Angles sum of triangle)
∠FGK = 52° (Vertically opposite angles)
∠ GFK
= 180° - 85° - 52°
= 43° (Angles sum of triangle)
Answer(s): (a) 37°; (b) 43°