Question

Two adjacent sides of a gm are in the ratio 4:5. If the smaller side is
20 cm, find the perimeter of the gm.
plz make me solve this quetion
​

Answer 1

Answer:

Let the adjacent side be 5x and 7x respectively.

We know that opposite sides of parallelogram are equal and opposite

So, 5x+7x+5x+7x=24x [Perimeter]

Given, 24x=72

x=3

Hence length of sides of parallelogram are 5×3 and 7×3 or 15 cm and 21 cm.