Posted by **Ghadah** on Friday, October 30, 2009 at 4:38am.

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**, Friday, October 30, 2009 at 7:26am
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 double-counted. Plug in the numbers for L and W.

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