Given a parallelogram ABCD. Complete each statement along with the definition property used.


(i)


(ii)


(iii)


(iv)

(i) In a parallelogram, opposite sides are equal in length

AD = BC


(ii) In a parallelogram, opposite angles are equal in measure


DCB = DAB


(iii) In a parallelogram, diagonals bisect each other


Hence, OC = OA


(iv) In a parallelogram, adjacent angles are supplementary to each other


Hence,


m DAB + m CDA = 180°


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