Noah built a fenced dog run that is 8 yards long and 6 yards wide.He placed post at every corner and every yard along the length and width of the run.How many post did he use?

There are 4 posts at the corners. For the length, posts needed at 2, 3, 4, 5, 6, and 7. For the width, posts needed at 2, 3, 4, and 5. Multiply internal posts by 2 and add them up.

To find the number of posts Noah used, we need to calculate the total number of posts along the length and width of the dog run.

First, let's calculate the number of posts along the length of the dog run:

There are 8 yards along the length, and a post is placed every yard. So, the number of posts along the length is 8.

Now, let's calculate the number of posts along the width of the dog run:

There are 6 yards along the width, and a post is placed every yard. So, the number of posts along the width is 6.

Next, we add the number of posts along the length (8) and the number of posts along the width (6) to find the total number of posts:

Total number of posts = number of posts along the length + number of posts along the width
Total number of posts = 8 + 6
Total number of posts = 14

Therefore, Noah used a total of 14 posts to build the dog run.

To find the number of posts Noah used to build the dog run, we need to calculate the number of posts on each side and then add them up.

The length of the dog run is given as 8 yards, and there is a post at every yard along the length. So, there are 8 posts on the length side.

Similarly, the width of the dog run is given as 6 yards, and there is a post at every yard along the width. So, there are 6 posts on the width side.

Now, we need to find the number of corner posts. Since there are four corners in a rectangle, there are 4 corner posts.

To get the total number of posts, we add the number of posts on each side and the corner posts:
Number of posts = Number of posts on length side + Number of posts on width side + Number of corner posts
= 8 + 6 + 4
= 18

Therefore, Noah used a total of 18 posts to build the dog run.