In the figure, not drawn to scale, O is the centre of the semi circle and OZAB is a rhombus. ∠OBC = 29°. Find
- ∠m
- ∠n.
(a)
OB = OC = Radius
∠BOC
= 180° - 29° - 29°
= 122° (Isosceles triangle)
∠m = ∠BOC = 122° (Corresponding angles, ZA//OB)
(b)
∠n
= 180° - 122°
= 58° (Interior angles, AB//ZO)
Answer(s): (a) 122°; (b) 58°