Originally Posted by
ebaines
A rectangle is a shape that has four sides with right angles at each corner. This means that 2 sides may be one length and the other 2 sides a different length, but it also means all 4 sides could be the same. If they are the same, it's called a square. So a square is a special cae of a rectangle.
One way to think through this is to try an experiment - can you draw a square and not have it be a rectangle? Try different sizes of squares and see. Then do the reverse - try drawing abunch of rectangles with varying sie length and see if any or all of them are also squares.