Question

Lengths of two adjacent sides of parallelogram are 4 cm and 5 cm. Find the perimeter of the parallelogram.

Answer 1

Since, the opposite sides of a parallelogram are equal,
let , one pair of the opposite length = 4
       other pair of opposite length = 5
perimeter = sum of length of four sides = 4+4+5+5
                                                               = 18 cm 

Answer 2

Answer:

breadth= 4cm length=5cm (opposite sides are equal in a parallelogram )

Step-by-step explanation:

perimeter of a parallelogram = 2(l+b)   = 2 (5+4)  = 2*9=18  so perimeter of the parallelogram is 18 cm.