<p>Hi guys, I need help with following question:</p>
<p>A square lot that is enclosed by a fence has fence posts at each corner. There are 10 fence posts on each side of the square lot. What is the total number of fence posts on the lot?</p>
<p>I don't have the answer for this question.
Could someone explain to me how to solve this question?</p>
<p>Draw a picture, if you have to. Each corner of the square has a post, and there are eight posts besides the corner posts on each side. Assign one corner post to each side and multiply nine (fence posts per side) times four (sides) to get thirty-six (posts). Or you could do eight (posts that aren’t corner posts on each side) times four (sides) plus four (corner posts) to get the same answer.</p>
<p>To get this right you need to count the posts at the corners with care – i.e. don’t double count those posts. Ignoring the corners for the moment there are 8 posts on each side, so 32 posts. Then there are posts at each corner – i.e. 4. The total is 36.</p>