Question
In the adjoining figure, ABCD is a parallelogram and EF is a line segment such that $EF \| AC$.
If $\angle ADE =32^{\circ}$ and $\angle CDF =26^{\circ}$, find the measure of $\angle ABC$.
Image

Answer

$\angle ABC =122^{\circ}$
[Hint : $\angle D C A=\angle C D F($ Why? $)$ and $\angle C A D=\angle A D E($ Why? $)]$ \

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