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Find sides and angles with congruent relationships

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Given that these shapes are congruent, find the values of $x$x and $y$y.



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Given that $\triangle BAC\equiv\triangle FED$BACFED, which angle of $\triangle FED$FED corresponds to $\angle ABC$ABC?

Given that $\triangle QPO\equiv\triangle CBA$QPOCBA, which angle of $\triangle QPO$QPO corresponds to $\angle BCA$BCA?

The two given triangles are congruent. By considering the relative position of angles and sides, or otherwise, find the missing values. Give a reason for each answer.

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