Question
In the figure, not drawn to scale, O is the centre of the semi circle and OABC is a rhombus. ∠OCD = 31°. Find
  1. ∠y
  2. ∠z.
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

In the figure, not drawn to scale, O is the centre of the semi circle and OABC is a rhombus. ∠OCD = 31°. Find
  1. ∠y
  2. ∠z.