In the figure, MNPQ is a parallelogram and RP = RQ.
- Find ∠s.
- Find ∠t.
(a)
∠MRN = ∠MNR (Isosceles triangle)
∠s
= 180° - 39° - 39° - 68°
= 34° (Interior angles)
(b)
∠MRN
= 180° - 39° - 39°
= 102° (Angles sum of triangle)
∠t
= 360° - 102°
= 258° (Angles at a point)
Answer(s): (a) 34°; (b) 258°