In the figure, QRST is a parallelogram and US = UT.
- Find ∠v.
- Find ∠w.
(a)
∠QUR = ∠QRU (Isosceles triangle)
∠v
= 180° - 44° - 44° - 71°
= 21° (Interior angles)
(b)
∠QUR
= 180° - 44° - 44°
= 92° (Angles sum of triangle)
∠w
= 360° - 92°
= 268° (Angles at a point)
Answer(s): (a) 21°; (b) 268°