Question

Check whether the following pairs of triangles are congruent. If they are congruent, state the congruence criterion.

Answer 1

$1).$ In $△ABC$ and $△PQR$

$AB=RQ=6$

$BC=QP=3$

$CA=PR=5$

By $S.S.S$ criteria $△ABC\cong △RQP$

$2)$ In $△ABD$ and $△BCD$

$AB=CD$

$BD=DB$

$DA=BC$

By $S.S.S$ criteria $△ABD\cong △CDB$