5.1
Congruency
\[\begin{aligned} BC &= \sqrt{5^2+12^2}\\ &=13\text{ cm}\\ &=RQ.\\\\ \angle PRQ &= 180^\circ - 90^\circ - 22.6^\circ\\ &=67.4^\circ\\ &=\angle ABC. \end{aligned}\]
The measurements of all corresponding sides and angles are equal. Both shapes are congruent.
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