In the figure, STUV is a parallelogram and WU = WV.
- Find ∠x.
- Find ∠y.
(a)
∠SWT = ∠STW (Isosceles triangle)
∠x
= 180° - 44° - 44° - 72°
= 20° (Interior angles)
(b)
∠SWT
= 180° - 44° - 44°
= 92° (Angles sum of triangle)
∠y
= 360° - 92°
= 268° (Angles at a point)
Answer(s): (a) 20°; (b) 268°