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 Related Terms
 Square:  A quadrilateral that has four right angles and four equal sides.
Kite: A quadrilateral that is not a parallelogram, but has two pairs of equal sides.
Quadrilateral: A polygon with 4 sides.
Rectangle: A parallelogram with four right angles.
Rhombus: A parallelogram with four equal sides.
Parallelogram: A quadrilateral with opposite sides that are parallel.
Polygon: A closed figure formed by three or more line segments.
Trapezoid: A quadrilateral that has only one pair of parallel sides.
Right Angle: An angle that measures exactly 90 degrees.