Diagonals of the parallelogram bisect each other.
True
Let ABCD is a parallelogram
In △AOB and △COD,
We have
∠BAD = ∠OCD {Alternate interior angle AB||DC}
∠ABO = ∠CDO {Alternate interior angle AB||DC}
AB = DC {opposite sides of parallelogram}
△AOB ≅△COD {ASA congruence criteria}
So, AO = OC and DO = OB
So, we can say that diagonals of parallelogram bisect each other.