Given that $ABCD$ is a trapezium, where $AD$ is parallel to $BC$, find the value(s)

Question

Given that $ABCD$ is a trapezium, where $AD$ is parallel to $BC$, find the value(s) of the unknown(s) in each of the following figures, stating your reasons clearly.

Accepted Answer

(i) $x=60^\circ$, $y=60^\circ$, $z=113^\circ$ (ii) $x=16^\circ$, $y=16^\circ$, $z=142^\circ$

Quadrilaterals

Quadrilaterals

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