Opposite sides are congruent, opposite angles are congruent, consecutive angles are supplementary, diagonals bisect, opposite sides are parallel
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Parallelogram defenition
A quadrilateral with two pairs of parallel sides
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Square Properties
opposite sides are congruent, opposite angles are congruent, 2 pairs of parallel sides, diagonals bisect, diagonals are perpendicular, diagonals are same length, consecutive angles supplementary, diagonals bisect opposite angles
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Rhombus Properties
Opposite sides are congruent, opposite angles are congruent, consecutive angles are supplementary, diagonals bisect, opposite sides are parallel, diagonals are perpendicular, diagonals bisect opposite angles
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Rectangle Properties
Opposite sides are congruent, opposite angles are congruent, consecutive angles are supplementary, diagonals bisect, opposite sides are parallel, diagonals are congruent
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Trapezoid defenition
quadrilateral with only one pair of parallel sides
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Isoceles trapezoid properties
congruent legs, diagonals are congruent, opposite angles are supplementary
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the non-parallel sides of a trapezoid
legs
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The parallel sides of a trapezoid
bases
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trapezoid properties
one pair of parallel sides, consecutive angles between parallel lines are supplementary