The manager of a shopping mall was asked to rope off a rectangular section of the parking lot for an automobile show. The area roped off was 250 ft by 300 ft. Post were to be placed every 25 ft around the lot. How many posts were needed?
The one question I can't get past for my homework; ugh. Any help would be appreciated. Please and thank you!
Use the perimeter of the rectangular section.
Two fences 250' long (10*25'), two fences 300' long (12*25'), sharing posts on at the four corners.
Or one fence 1100' long (44*25'), looped around to finish at the starting post.
To find the number of posts needed to rope off the rectangular section of the parking lot, we need to find the perimeter of the section and then divide it by the spacing between the posts.
First, let's find the perimeter of the rectangular section. The formula to find the perimeter of a rectangle is given by:
Perimeter = 2 * (Length + Width)
In this case, the length of the parking lot is 250 ft and the width is 300 ft. Plugging the values into the formula, we have:
Perimeter = 2 * (250 ft + 300 ft)
Perimeter = 2 * 550 ft
Perimeter = 1100 ft
Now, let's calculate the number of posts needed by dividing the perimeter by the spacing between the posts, which is 25 ft:
Number of posts = Perimeter / Spacing
Number of posts = 1100 ft / 25 ft
Number of posts = 44
Therefore, 44 posts would be needed to rope off the rectangular section of the parking lot.