Question

the perimeter of a parallelogram ABCD is 40cm if AB=6cm ,find BC,CDand DA

Answer 1

CD=6
DA=BC=14
opposite sides of parallelogram are equal

Answer 2

AB=CD,BC=AD(sides opposite of a parallelogram are equal),But ,AB=6,so ab+bc+cd+ad=40, 6+bc+6+bc=40,2bc=28,sobc=14cm=ad=14,Cd=ab=6cm