Question

ABCD is a parallelogram.If perimeter of parallelogram is 20 cm and AB= x cm ,then BC = ????

I need step by step explanation...please answer it fast...!!!​

Answer 1

SOLUTION:

ABCD is a parallelogram.

AB = x cm,

Perimeter of ABCD = 20cm

=> 2(AB+BC)=20

_______________________

In a parallelogram opposite

sides are equal.

_______________________

AB+BC = 10

=> x+BC = 10

=> BC = 10-x

Therefore,

BC = 10-x

••••

Answer 2

Hey !

Refer the below attachment !

Thanks !