A farmer built a fence around his 17 cows, in a square shaped region .He used 27 fence poles on each side of the square. how many poles did he need altogether?
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.