In the figure, PQRS is a parallelogram and TR = TS.
- Find ∠u.
- Find ∠v.
(a)
∠PTQ = ∠PQT (Isosceles triangle)
∠u
= 180° - 39° - 39° - 70°
= 32° (Interior angles)
(b)
∠PTQ
= 180° - 39° - 39°
= 102° (Angles sum of triangle)
∠v
= 360° - 102°
= 258° (Angles at a point)
Answer(s): (a) 32°; (b) 258°