Δ PQR and ΔRQS are similar triangle.
What are congruent triangles?
Two triangles are said to be congruent if their corresponding sides and angles are equal.
In the Δ PQR and ΔRQS
∠PQR=∠RQS = 90°
∠PRQ=∠SRQ = 45°
∵Two angles are equal,
So it said to be congruent hence Δ PQR and ΔRQS are similar triangle
Learn more about congruent triangles
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