Question

3
One side of a parallelogram is 3 times its adjacent side. If the perimeter of the
parallelogram is 70 cm, find the sides of the parallelogram.
A​

Answer 1

Answer:let the side be x cm

Now in a parallelogram opposite sides are equal and parallel.

One more thing is it is given

Y ( the other side ) = 3/4 X cm

So the perimeter of parallelogram is 

2 ( x + y ) = 70

2 ( X + 3/4 X ) = 70

7x / 4 = 35

X = 140 / 7 

X = 20 cm

Y = 3/4 X = 15cm

So the sides of the parallelogram is

20 cm , 20 cm , 15 cm , 15 cm