Question

If ABCD is a parallelogram then prove that traingle ABD is congruent to Triangle CDB

Answer 1

Hey buddy
here's the answer


in triangle ABD and CDB

BD = BD [ common ]
AB = CD [ opposite sides are equal in a parallelogram ]
AD = BD [ opposite sides are equal in a parallelogram ]

Therefore , triangle ABC and CDB are congruent [ by SSS test ]


HOPE IT HELPS...

Answer 2

By A.S.A congruency rule it is solved. Hope you understand.