Calculating the Perimeter of a Rectangle

Emma has a rectangular garden that is 5 meters long and 3 meters wide. She wants to know how much fencing she will need to put around the garden. To find this, she needs to calculate the perimeter of the rectangle.

The formula for the perimeter $P$ of a rectangle is given by:

$$P = 2(l + w)$$

where $l$ is the length and $w$ is the width of the rectangle.

Using the dimensions of Emma's garden, what is the perimeter?