Question

The adjacent sides of a parallelogram are in the ratio 1:3 and it's perimeter is 20 cm.​ Find the side of the parellogram.

Answer 1

Answer:

2(x + 3x) = 20

8x = 20

x = 20/8 = 2.5 cm

Answer 2

Answer:

Let the sides of the parallelogram be x and 3x

By the question, 2(x + 3x) = 20 CM

→ 2x + 6x = 20 cm

→ 8x = 20 cm

→ x = 20/8

→ x = 2.5