PSLEIn the figure, JKLM is a parallelogram. JGM and GLH are straight lines. ∠HLM = 153°, ∠JML = 42° and ∠JLG = 17°.
- Find ∠KLH.
- Find ∠KJL.
(a)
∠KLM
= 180° - 42°
= 138° (Interior angles)
∠KLH
= 360° - 153° - 138°
= 69° (Angles at a point)
(b)
∠MLG
= 180° - 153°
= 27°(Angles on a straight line)
∠KJL
= ∠JLM
= 27° + 17°
= 44° (Alternate angles)
Answer(s): (a) 69°; (b) 44°