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The perimeter of a quadrilateral is the sum of the lengths of all four sides of a quadrilateral.

## How to Find the Perimeter of a Quadrilateral

Since a quadrilateral is a plane figure having four sides, the perimeter of a quadrilateral can be obtained by adding the lengths of all four sides.

Following the above procedure, the formula for the perimeter of a quadrilateral is given below:

Find the perimeter of the quadrilateral ABCD with sides 6 cm, 7 cm, 9 cm, and 10 cm.

Solution:

As we know, P = side 1 + side 2 + side 3 + side 4, here side 1 = 6 cm, side 2 = 7 cm, side 3 = 9 cm, and side 4 = 10 cm
= (6 + 7 + 9 + 10) cm
= 32 cm

Calculate the perimeter of the quadrilateral PQRS having sides 4.5 m, 6.5 m, 8.5 m, and 11.5 m.

Solution:

As we know, P = side 1 + side 2 + side 3 + side 4, here side 1 = 4.5 m, side 2 = 6.5 m, side 3 = 8.5 m, and side 4 = 11.5 m
= (4.5 + 6.5 + 8.5 + 11.5) m
= 31 m