Use the following applet to prove the conjectures below.[br][br]• All rectangles are parallelograms.[br]• If a parallelogram has (at least) one right angle, then it is a rectangle. [br]• If a quadrilateral has 2 pairs of opposite sides that are congruent, then it is a parallelogram. [br]• If the diagonals of a quadrilateral both bisect each other, then the quadrilateral is a parallelogram. [br]• If the diagonals of a quadrilateral both bisect each other and they are perpendicular, then the quadrilateral is a rhombus.[br][br][b]Definition of a parallelogram:[/b][br]a quadrilateral with two pairs of parallel opposite sides[br][br][b]Definition of a rectangle:[/b][br]a quadrilateral with four right angles.[br]