Properties of Parallelograms

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a parallelogram?
Back
A parallelogram is a quadrilateral with opposite sides that are both parallel and equal in length.
2.
FLASHCARD QUESTION
Front
What theorem states that if both pairs of opposite angles are congruent, then the quadrilateral is a parallelogram?
Back
The Opposite Angles Theorem.
3.
FLASHCARD QUESTION
Front
What property of a parallelogram states that the diagonals bisect each other?
Back
The Diagonal Bisector Property.
4.
FLASHCARD QUESTION
Front
If one pair of opposite sides of a quadrilateral is both parallel and congruent, what can be concluded?
Back
The quadrilateral is a parallelogram.
5.
FLASHCARD QUESTION
Front
What is the relationship between consecutive angles in a parallelogram?
Back
Consecutive angles are supplementary, meaning they add up to 180 degrees.
6.
FLASHCARD QUESTION
Front
How can you prove that a quadrilateral is a parallelogram using the sides?
Back
If both pairs of opposite sides are congruent, then the quadrilateral is a parallelogram.
7.
FLASHCARD QUESTION
Front
What is the significance of the Opposite Sides Congruent theorem?
Back
If both pairs of opposite sides of a quadrilateral are congruent, then it is a parallelogram.
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