In the figure, STUV is a parallelogram and WU = WV.
- Find ∠x.
- Find ∠y.
(a)
∠SWT = ∠STW (Isosceles triangle)
∠x
= 180° - 42° - 42° - 68°
= 28° (Interior angles)
(b)
∠SWT
= 180° - 42° - 42°
= 96° (Angles sum of triangle)
∠y
= 360° - 96°
= 264° (Angles at a point)
Answer(s): (a) 28°; (b) 264°