



 
Hi Shelby, A rectangle is a quadrilateral with all four angles right angles. From this you can prove that the opposite sides must be parallel and of the same length. Hence the front of the drawer on my office is a rectangle and so is the door into my office. A square is a quadrilateral with all four angles right angles and all four sides the same length. I got a CD in the mail yesterday and the paper envelope it came in is a square. A square is also a rectangle since it is a quadrilateral and all the angles are right angles. A rectangle however need not be a square. The door to my office is a rectangle but the height and width are different so it is not a square. I hope this helps, Penny  


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