The perimeter of a rectangle is the total length of its four sides. It is calculated by adding the length of all four sides of the rectangle, which are typically denoted as L (length) and W (width).

The formula for the perimeter of a rectangle is given as:

Perimeter = 2(L + W)

Rectangles are commonly found in everyday objects, such as doors, windows, and bookshelves. Calculating the perimeter of a rectangle is useful in many real-life situations, such as determining how much fencing is needed for a rectangular yard or how much material is required to create a picture frame.

The formula for determining the perimeter of a rectangle is defined as:

\(P\) \(=\) \(2\) \(\cdot\) \((L+W)\)

\(P\): the perimeter of the rectangle

\(L\): the lengths of the longer sides

\(W\): the length of the shorter sides

The SI unit of perimeter is: \(meter\text{ }(m)\)

## Find \(P\)

Use this calculator to determine the perimeter of a rectangle when the lengths and widths are given.

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the lengths of the longer sides

\(L\)

\(meter\)

the length of the shorter sides

\(W\)

\(meter\)