Question

In a parallelogram ABCD, AB and CD are adjacent sides. If AB = 12 cm, BC = 8 cm, then perimeter of the parallelogram is .

• A. 35 cm
• B. 20 cm
• C. 30 cm
• D. 40 cm

Answer 1

The correct option is D 40 cm

Given ABCD is a parallelogram. Hence, the opposite sides of the parallelogram are equal.

Then, AB = CD = 12 cm and BC = DA = 8 cm.

The perimeter of the parallelogram will be the sum of all the sides.
$\to$ Perimeter = AB + BC + CD + DA
$\to$ Perimeter = 12 cm + 8 cm + 12 cm + 8 cm = 40 cm.

The perimeter of the parallelogram ABCD is 40 cm.