A parallelogram has two parallel pairs of opposite sides. A rectangle has two pairs of opposite sides parallel, and four right angles. It is also a parallelogram, since it has two pairs of parallel sides. A square has two pairs of parallel sides, four right angles, and all four sides are equal.It is also a rectangle and a parallelogram. A rhombus is defined as a parallelogram with four equal sides.o, because all four sides of a rectangle don't have to be equal. However, the sets of rectangles and rhombuses do intersect, and their intersection is the set of squaresall squares are both a rectangle and a rhombus. We can put squares in the intersection of the two circles.
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