A man is erecting a fence around a square piece of land of side 60 metres he outs posts every 60 metres how many pists did he use?
How many do you think? Draw a picture.
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To determine the number of posts the man used to erect the fence around the square piece of land, we need to find the perimeter of the square and then calculate the number of intervals between the posts.
1. Start by finding the perimeter of the square. Since all four sides of a square are equal, the perimeter is the sum of all four sides.
Perimeter = (side length) x 4
Perimeter = 60 m x 4
Perimeter = 240 meters
2. Next, divide the total perimeter by the interval between the posts to determine the number of intervals.
Number of intervals = (Perimeter) / (interval between posts)
Number of intervals = 240 m / 60 m
Number of intervals = 4
3. Since there are four intervals, we need one more post than the number of intervals.
Number of posts = Number of intervals + 1
Number of posts = 4 + 1
Number of posts = 5
Therefore, the man used 5 posts to erect the fence around the square piece of land.