A post is put every 6 feet along a rectangular fence that is 42 ft long and 36 ft wide. How many posts are needed?
Is it a rectangular "fence" or a rectangular "field?"
sketch a "smaller" rectangle,
e.g. 12ft by 18ft
and put an X every 6 ft
count the X's along each side,
generalize what you need for a 42 by 36 rectangle.
To find out how many posts are needed, we need to calculate the number of gaps between the posts along the length and width of the fence.
For the length of the fence, we divide the length (42 ft) by the spacing between the posts (6 ft).
Number of posts along the length = Length of the fence / Spacing between the posts
Number of posts along the length = 42 ft / 6 ft = 7 posts.
For the width of the fence, we divide the width (36 ft) by the spacing between the posts (6 ft).
Number of posts along the width = Width of the fence / Spacing between the posts
Number of posts along the width = 36 ft / 6 ft = 6 posts.
Now, we calculate the total number of posts by multiplying the number of posts along the length by the number of posts along the width.
Total number of posts = Number of posts along the length × Number of posts along the width
Total number of posts = 7 posts × 6 posts = 42 posts.
Therefore, 42 posts are needed to cover the entire rectangular fence.
To find the number of posts needed, we first need to determine the spacing between each post.
Since the fence is 42 feet long and there are posts placed every 6 feet, we can divide the length of the fence by the spacing between the posts: 42 feet ÷ 6 feet = 7 posts along the length.
Similarly, for the width of the fence, which is 36 feet, we can also divide it by the spacing of 6 feet: 36 feet ÷ 6 feet = 6 posts along the width.
To find the total number of posts needed, we multiply the number of posts along the length by the number of posts along the width: 7 posts × 6 posts = 42 posts.
Therefore, 42 posts are needed to put a post every 6 feet along a rectangular fence that is 42 ft long and 36 ft wide.