Question
PSLE
In the figure, ZDB and CDA are straight lines. ZA = AB = BC. ∠ZDC = 109° and ∠AZB = 30°. Find ∠ZBC.
3 m

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PSLE
In the figure, ZDB and CDA are straight lines. ZA = AB = BC. ∠ZDC = 109° and ∠AZB = 30°. Find ∠ZBC.