math VERY URGENT+IMPORTANT
posted by Anonymous on .
Farmer McDonald is building a fence. He will place posts six feet apart and stretch the wire fencing between the posts. If his pasture is thirtysix feet long and twelve feet across, how many posts will he need? Please help immediately1

Draw a diagram, something like this. Let . represent each post.
. . .
.  .
.  .
.  .
.  .
.  .
. . . 
I am still confused. :(

Imagine each dot is a post 6 feet apart.
You may want to sketch this problem on graph paper.
Count the dots. 
He needs 21 posts. Right or wrong?

Wrong.
Draw a diagram, noting that you put only one fence post at each corner. 
draw a diagram like ms. Sue said

I know it! 16 posts. right or wrong?

Right!!! 16 posts.

Thank you!:D

You're welcome.

34 ft

Mama