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with four sides).

of opposite sides are parallel.

pairs of opposite sides are parallel.

congruent sides and four right

angles.

four right angles, so all rectangles

are also parallelograms and

quadrilaterals.

parallel sides.

adjacent congruent sides.

sides have equal length.

In this figure all sids are 60 degrees

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A Quadrilateral but not a parallelogram

A Quadrilateral but **not** a parallelogram

A Quadrilateral but not a parallelogram

Squares Quadrilaterals and parallelograms

Rectangles Quadrilaterals and parallelograms

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