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18 Cards in this Set
- Front
- Back
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If a quadrilateral is a parallelogram, then its opposite angles are...
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congruent
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If a quadrilateral is a parallelogram, then its consecutive angles are...
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supplementary
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If a quadrilateral is a parallelogram, then its diagonals...
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bisect each other
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If a quadrilateral is a parallelogram, then its opposite sides are...
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congruent
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The sum of the interior angle measures of a convex polygon with n sides is...
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(n - 2) 180 degrees
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The sum of the exterior angle measures, one angle at each vertex, of a convex polygon is...
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360 degrees
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If one pair of opposite sides of a quadrilateral are parallel and congruent, then the quadrilateral is...
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a parallelogram
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If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is...
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a parallelogram
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If both pairs of opposite angles of a quadrilateral are congruent, then the quadrilateral is...
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a parallelogram
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If an angle of a quadrilateral is supplementary to both of its consecutive angles, then the quadrilateral is...
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a parallelogram
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If the diagonals of a quadrilateral bisect each other, then the quadrilateral is...
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a parallelogram
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If a quadrilateral is a rectangle, it is a...
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Parallelogram
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If a parallelogram is a rectangle, then its diagonals are...
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Congruent
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If a quadrilateral is a rhombus, then it is a...
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parallelogram
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If a parallelogram is a rhombus, then its diagonals are...
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Perpendicular
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If a parallelogram is a rhombus, then its diagonal bisects...
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a pair of opposite angles
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If one angle of a parallelogram is a right angle, then the parallelogram is a...
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rectangle
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If the diagonals of a parallelogram are congruent, then the it is a...
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rectangle
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