Question

Given a parallelogram ABCD. Complete each statement along with the definition or property used.
(i) AD = …………
$\left(ii\right)\angle DCB=\dots \dots \dots$
(iii) OC = ………
$\left(iv\right)m\angle DAB+m\angle CDA=\dots \dots ..$

Answer 1

(i) AD = BC [Opposite sides of a parallelogram are equal]
$\left(ii\right)\angle DCB=\angle DAB$ [Opposite angles of a parallelogram are equal]
(iii) OC = OA [Diagonals of a parallelogram bisect each other] $\left(iv\right)m\angle DAB+m\angle CDA={180}^{\circ }$ [Adjacent angles of a parallelogram are supplementary]