A rectangular swimming pool measures 12 meters in length and 5 meters in width. Surrounding the pool is a walkway that is 1.5 meters wide, which runs along all four sides. To find the total area of the walkway, you need to determine the area of the larger rectangle created by the pool and the walkway, and then subtract the area of the pool from it.
The area of a rectangle can be calculated using the formula:
$$ A = l imes w $$
where $A$ is the area, $l$ is the length, and $w$ is the width.