For his birthday, Mike was given a small puppy.  His uncle said, "This is the perfect gift, but your pet needs a fenced in area to keep him safe."
Let's help Mike find out how much fence he will need.
Next Page













 
To find out how much fence Mike needs, you need to know the distance around the yard he wants to fence.  You can find the perimeter by adding the lengths of the sides.

Previous Page | Next Page





















 
Can you find the perimeter of this rectangle?
2 + 3 + 2 + 3 =   


Previous Page | Next Page





















 
Now you can find the perimeter of any square or rectangle!

You can find the perimeter of any shape by adding the lengths of each side together.

Try It!

Type in the length of each side and add them to find the perimeter.
+ + +  = 


Previous Page | Next Page













 
Mike and his uncle still need your help to find the perimeter of the yard to know how much fence to buy.  Measure each side and add the lengths to find the answer.


? + ? + ? + ? = 



Previous Page | Next Page













 
Now you are a regular Perimeter Wizard! Find the perimeter of this rectangle.
? + ? + ? + ? =  



Previous Page | Next Page





















 

That's Right

is the correct answer!



Previous Page | Next Page

























 
Now that you can find the perimeter of a rectangle, try to measure the perimeter around one of your books.





Previous Page