In ΔABC and ΔPQR, $\angle$A = $\angle$P, $\angle$B = $\angle$Q and AB = 2 PQ, then the two triangles are ______.

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In ΔABC and ΔPQR, $\angle$A = $\angle$P, $\angle$B = $\angle$Q and AB = 2 PQ, then the two triangles are similar but not congruent. Explanation: Given $\angle$A = $\angle$P and $\angle$B = $\angle$Q, the two triangles are similar by AA (Angle–Angle) similarity. Also, AB = 2 PQ, so corresponding sides are not equal (ratio is 2 : 1), hence triangles are not congruent. Therefore, the triangles are similar but not congruent.

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