Question
The figure is not drawn to scale. ∠a and ∠y are in the ratio 1 : 4. ∠z and ∠b are in the ratio 4 : 1. If ∠y = 108°, find ∠b.
3 m

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The figure is not drawn to scale. ∠a and ∠y are in the ratio 1 : 4. ∠z and ∠b are in the ratio 4 : 1. If ∠y = 108°, find ∠b.