The figure shows a parallelogram. Find
- ∠t
- ∠s
- ∠r
(a)
∠WZX
= 180° - 33° - 72°
= 75° (Angles sum of triangle)
∠t = ∠WZX = 75° (Vertically opposite angles)
(b)
∠s = ∠WVX = 52° (Alternate angles)
(c)
∠XZW = ∠t = 75° (Vertically opposite angles)
∠r
= 75° - 52°
= 23° (Exterior angle of a triangle)
Answer(s): (a) 75°; (b) 52°; (c) 23°