In the figure, not drawn to scale, O is the centre of the semi circle and OUVW is a rhombus. ∠OWX = 35°. Find
- ∠r
- ∠s.
(a)
OW = OX = Radius
∠WOX
= 180° - 35° - 35°
= 110° (Isosceles triangle)
∠r = ∠WOX = 110° (Corresponding angles, UV//OW)
(b)
∠s
= 180° - 110°
= 70° (Interior angles, VW//UO)
Answer(s): (a) 110°; (b) 70°