<span>Rectangles and squares are alike in that both have two pairs of parallel sides and four right angles. They are different because a square must have four equal sides lengths and a rectangle has two pairs of equal side lengths.</span>
-- Each has 4 sides. -- Opposite sides of each are parallel. -- Opposite sides of each have equal length. -- Interior angles of each sum to 360 degrees. -- Each is a special case of parallelogram. -- Each has all interior angles equal. -- Area of either one is (length) x (width).
