In the figure, MNPQ is a parallelogram and RP = RQ.
- Find ∠s.
- Find ∠t.
(a)
∠MRN = ∠MNR (Isosceles triangle)
∠s
= 180° - 48° - 48° - 70°
= 14° (Interior angles)
(b)
∠MRN
= 180° - 48° - 48°
= 84° (Angles sum of triangle)
∠t
= 360° - 84°
= 276° (Angles at a point)
Answer(s): (a) 14°; (b) 276°