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12 Cards in this Set
- Front
- Back
Theorem 6-1
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Opposite sides of parallelograms are congruent.
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Theorem 6-2
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Opposite angles of parallelograms are congruent.
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Theorem 6-3
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Diagonals of a parallelogram bisect each other.
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Theorem 6-4
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If three (or more) parallel lines cut off congruent segments on one transversal, then they cut off congruent segment on every transversal.
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Theorem 6-5
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If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram.
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Theorem 6-6
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If both pairs of opposite angles of a quadrilateral are congruent, then the quadrilateral is a parallelogram.
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Theorem 6-7
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If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram.
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Theorem 6-8
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If one pair of opposite sides of a quadrilateral is both congruent and parallel, then the quadrilateral is a parallelogram.
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Parallelogram
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A quadrilateral with both pairs of opposite sides parallel.
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Property of Parallelogram #1
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Opposite sides of a parallelogram are congruent.
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Property of Parallelogram #2
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Opposite angles of a parallelogram are congruent.
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Property of Parallelogram #3
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Diagonals of a parallelogram bisect each other.
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