Question

Suppose ABCD is a parallelogram i n which AB is 9cm and its perimeter is 30cm. Find the length of each side of the parallelogram

Answer 1

Given,
            AB=9cm,AB=CD=9cm
            perimeter=sum of all sides (or)2(l+b)
            30               =AB+BC+CD+DA
                      30=9+9+BC+DA                              (BC=DA)
             30-18=2(BC)
                 12/2=BC
                     6=BC
therefore,AB=CD=9cm,BC=DA=6cm