PSLE MNPQ is a trapezium with MN parallel to QP. MSN and RSQ are straight lines and MR = RN. ∠RMQ = 93°.
- Find ∠MQS.
- Find ∠NRS.
(a)
∠MQS
= 180° - 93° - 28°
= 59° (Angles sum of triangle)
(b)
∠MSQ
= 73° (Alternate angles)
∠NMR
= 73° - 28°
= 45° (Exterior angle of a triangle)
∠NRS
= 180° - 45° - 45° - 28°
= 62° (Angles sum of triangle)
Answer(s): (a) 59°; (b) 62°