The figure shows a trapezium where $BC$ is parallel to $AE$. Given that $CDE$ is an

Question

The figure shows a trapezium where $BC$ is parallel to $AE$. Given that $CDE$ is an equilateral triangle and $\angle ABC=100{}^\circ $, find the values of $x$, $y$, stating your reasons clearly.

Accepted Answer

(a) $x=60^\circ$ (b) $y=80^\circ$

Finding Unknown Angles in Trapezium ABCE

Finding Unknown Angles in Trapezium ABCE

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