To answer this question, we need to remember that the perimeter of a rectangle is given by:
Where
• l is the length of the rectangle.
,
• w is the width of the rectangle.
If we have that:
• P = 286ft
,
• w = 66ft
Then we have (without units):
Therefore
Now, to solve for l, we need to subtract 132 from both sides of the equation, and then divide both sides by 2:
Finally, we have:
Therefore, the length of the rectangular garden is equal to 77 feet.