In the figure, PQRS is a parallelogram and TR = TS.
- Find ∠u.
- Find ∠v.
(a)
∠PTQ = ∠PQT (Isosceles triangle)
∠u
= 180° - 49° - 49° - 68°
= 14° (Interior angles)
(b)
∠PTQ
= 180° - 49° - 49°
= 82° (Angles sum of triangle)
∠v
= 360° - 82°
= 278° (Angles at a point)
Answer(s): (a) 14°; (b) 278°