Formula for Perimeter of a Rectangle

Perimeter of a Rectangle - Sub Topics

The reading material provided on this page for Formula for Perimeter of a Rectangle is specifically designed for students in grades 5 and 6.

What is a Rectangle?

A rectangle is a quadrilateral with all four angles equal to 90 degrees and opposite sides that are equal and parallel.

A rectangle is a type of quadrilateral.
A rectangle has four sides with opposite sides that are equal.
A rectangle has four right angles.
A rectangle has two pairs of parallel sides.

Perimeter of a Rectangle

Perimeter of a rectangle is defined as the sum of the lengths of all four sides. The unit of perimeter depends on the unit of sides of rectangle. It can be m, cm, inches, feet etc.

To find the perimeter of a rectangle, you simply add up the lengths of the two longer sides (the "length" of the rectangle) and the two shorter sides (the "breadth" of the rectangle)
Perimeter = length + breadth + length + breadth
= l + b + l + b
= 2 l + 2 b
= 2 (l + b)

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