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 them congruent :

Answer

(i) `DeltaABC~=DeltaPQR` , (ii) `DeltaABD~=DeltaCDB` (iii) `Delta~=DeltaPXZ` (iv) `DeltaAOB=DeltaOCD` ,(v) `DeltaAOB~=DeltaOCD` , (vi) `:.DeltaABM~=ACM`