Calculating the Perimeter of a Rectangle

A rectangular garden has a length of 10 meters and a width of 5 meters. To find the total distance around the garden, we need to calculate its perimeter. The formula for calculating the perimeter $P$ of a rectangle is given by:

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

where $l$ is the length and $w$ is the width. What is the perimeter of the garden?