In the figure, not drawn to scale, O is the centre of the semi circle and OABC is a rhombus. ∠OCD = 32°. Find
- ∠g
- ∠h.
(a)
OC = OD = Radius
∠COD
= 180° - 32° - 32°
= 116° (Isosceles triangle)
∠g = ∠COD = 116° (Corresponding angles, AB//OC)
(b)
∠h
= 180° - 116°
= 64° (Interior angles, BC//AO)
Answer(s): (a) 116°; (b) 64°