6 Flashcards
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Thm 6.3
If a quad is a parallelogram then it’s opposite sides are congruent
Parallelogram
A quadrilateral whose opposite sides are parallel
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Thm 6.4
If a quad is a parallelogram the it’s opposite angles are congruent
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Thm 6.5
If a quad is a parallelogram then it’s consecutive angles are supplementary
Diagonals of parallelograms
If a quad is a parallelogram than it’s diagonals bisect eachother
Thm 6.7
If both pairs of opposite sides of a quad are congruent, than the quad is a parallelogram
Thm 6.8
If both pairs of opposite angles of a quad are congruent then the quad is a parallelogram
Thm 6.9
If an angle of a quad is supplementary to both consectutive angles then the quad is a parallelogram
Thm 6.10
If the diagonals of a quad bisect eachother then the quad is a parallelogram
Thm 6.11
If one pair of opposite sides of a quad are congruent and parallel, then the quad is a parallelogram