Chapter 5 -- Quadrilaterals

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Presentation transcript:

Chapter 5 -- Quadrilaterals Section 5-1 – parallelograms

Definition of a Parallelogram A quadrilateral with parallel opposite sides Note: parallel sides mean same-side interior angles are supplementary. Complete Sample Problem 1

Properties of parallelograms Opposite sides of a parallelogram are congruent. Complete Sample Problem 2

Properties of parallelograms Opposite angles of a parallelogram are congruent. Complete Sample Problem 3

Properties of parallelograms Diagonals of a parallelogram bisect each other. Complete Sample Problem 4

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