The figure shows a parallelogram. Find
- ∠t
- ∠s
- ∠r
(a)
∠WZX
= 180° - 41° - 63°
= 76° (Angles sum of triangle)
∠t = ∠WZX = 76° (Vertically opposite angles)
(b)
∠s = ∠WVX = 65° (Alternate angles)
(c)
∠XZW = ∠t = 76° (Vertically opposite angles)
∠r
= 76° - 65°
= 11° (Exterior angle of a triangle)
Answer(s): (a) 76°; (b) 65°; (c) 11°