Question

Consider the given pairs of triangles and say whether each pair is that of congruent triangles. If the triangles are congruent, say ‘how’; if they are not congruent say ‘why’ and also say if a small modification would make them congruent:

Answer 1

In ΔABD and ΔCDB

AB = CD ...(Given)

AD = BC ...(Given)

BD is common

By SSS congruency

ΔABD ≅ ΔCDB