Question
PSLE
In the figure, ZABC is a parallelogram and BCXY is a rhombus. ∠ABY = 90° and ∠BYC = 21°. Find ∠ZAB.
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PSLE
In the figure, ZABC is a parallelogram and BCXY is a rhombus. ∠ABY = 90° and ∠BYC = 21°. Find ∠ZAB.