For two given congruent triangles abc and pqr, how many correspondence matchings are possible?

When two triangles, say ABC and PQR are given, there are, in all, six possible matchings or correspondences. Two of them are (i) ABC = PQR and (ii) ABC = QRP. Find the other four correspondences by using two cutouts of triangles. Will all these corres- pondences lead to congruence? Think about it.

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For two given congruent triangles ABC and PQR, how many correspondences are possible?