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A parallelogram (along with all special cases), an isosceles trapezium and some totally irregular quadrilaterals.

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13y ago

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Related Questions

What is the Opposite Sides Parallel and Congruent Theorem?

The Opposite Sides Parallel and Congruent Theorem states that if a quadrilateral has a pair of opposite sides that are parallel and congruent, then the quadrilateral is a parallelogram.


A quadrilateral with both pairs of opposite sides congruent?

A quadrilateral with both pairs of opposite sides congruent is a parallelogram.


What quadrilateral has both pairs of opposite sides congruent?

A parallelogram has two pairs of congruent sides, and the opposite sides are congruent.


If one pair of opposite sides of a quadrilateral is congruent then the quadrilateral is a parallelogram?

No. The congruent sides need not be parallel.


If one pair of opposite sides of a quadrilateral is parallel and then the quadrilateral is a parallelogram?

Then, the opposite sides are congruent.


What is quadrilateral with opposite sides parallel and opposite sides congruent?

parellelagram


If both pairs of opposite sides of a quadrilateral are congruent then the quadrilateral is a parallelogram?

always


What quadrilateral had opposite sides parallel and all sides congruent?

A square's opposite sides are parallel and all the sides are congruent.


What is the Parallelogram Opposite Sides Converse?

If a quadrilateral has two pairs of opposite congruent sides, then the quadrilateral is a parallelogram.


What is a quadrilateral with two pairs of congruent adjacent sides congruent and no congruent opposite sides?

Diamond


What is a quadrilateral with 2 pairs of congruent adjacent sides congruent and no congruent opposite sides?

Trapezoid.


What is a quadrilateral with opposite sides of congruent?

Parallelograms, rhombuses, squares, and rectangles are the quadrilaterals that have opposite congruent sides.