PSLE HJKL is a trapezium with HJ parallel to LK. HNJ and MNL are straight lines and HM = MJ. ∠MHL = 94°.
- Find ∠HLN.
- Find ∠JMN.
(a)
∠HLN
= 180° - 94° - 21°
= 65° (Angles sum of triangle)
(b)
∠HNL
= 67° (Alternate angles)
∠JHM
= 67° - 21°
= 46° (Exterior angle of a triangle)
∠JMN
= 180° - 46° - 46° - 21°
= 67° (Angles sum of triangle)
Answer(s): (a) 65°; (b) 67°