Posted by Ghadah on .
The park ranger is fencing in an area that is 24 ft wide and 36 ft long. The fence posts will be 3 ft apart. How many fence posts will he need?
BE SURE TO USE EQUATIONS FOR THIS PROBLEM.

Math 
drwls,
The number of posts for the long (length = L) sides is 2 L/3. That will provide the posts between the corners, plus one corner post for each side.
The number of posts (N) for the narrow (width = W) sides is 2 W/3. Add the two terms for the answer.
N = (2/3)(L + W)
Corner posts will not be doublecounted. Plug in the numbers for L and W.