A quadrilateral with four congruent angles, opposite sides congruent and parallel.
A quadrilateral with these characteristic is the rectangle, becuase all its for angles are equal to 90°, and opposite sides are parallel and congruent.
Rhombus is a parallelogram with four congruent sides<span>. Notice that a rhombus does not </span>ALWAYS<span> have right </span>angles<span> like a square, but it does </span>always<span> have </span>congruent sides<span>. Trapezoid is a parallelogram with one pair of </span>opposite sides parallel<span>.</span>