Two sides of a parallelogram are in the ratio 4:3.
Let the two sides be 4x cm and 3x cm.
In a parallelogram, opposite sides are equal and parallel. So, they are also in the ratio of 4 : 3, i.e. 4x cm and 3x cm.
Perimeter = 4x+3x+4x+3x
⇒56=14x
⇒x=5614
⇒x=4
⇒ 4x=16 and 3x=12
Hence, lengths of its sides are 16 cm, 12 cm, 16 cm, and 12 cm.