Match the following.
1. a polygon with four sides square
2. a quadrilateral with one pair of parallel sides trapezoid
3. a quadrilateral with two sets of parallel and congruent sides rhombus
4. a trapezoid with legs that are congruent parallelogram
5. a parallelogram with four congruent sides rectangle
6. a parallelogram with four right angles and four congruent sides quadrilateral
7. a parallelogram with four right angles isosceles trapezoid