Question

3. Two adjacent sides of a parallelogram are in the ratio 5 : 7. If the perimeter of
parallelogram is 72 cm, find the length of its sides.


plz try to give the answer in photo.​

Answer 1

Explanation:

Let take the sides = 5x and 7x.

then,

perimeter = 2(l+b)

therefore,

2(5x +7x) = 72

12x = 72/2

12x = 36 .......(dividing by 2)

x = 3 ......( dividing by 12)

Substituting x value

5x = 5(3) = 15cm

7x = 7(3) = 21cm