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**Geometry Mr. Zampetti Unit 3, Day 4**

Quadrilaterals Geometry Mr. Zampetti Unit 3, Day 4

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**Vocabulary Quadrilateral: A polygon with 4 sides.**

Consecutive angles: Two angles whose vertices are endpoints of a side. Opposite angles: Two angles that are not consecutive angles. A B D C

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**Parallelogram Characteristics of a parallelogram:**

Opposite sides are parallel. Opposite sides are congruent. Opposite angles are congruent. Consecutive angles are supplements. Diagonals bisect each other.

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**Rectangle A parallelogram with four right angles.**

The diagonals of a rectangle are congruent.

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**Rhombus A parallelogram in which all sides are of equal length.**

The diagonals of a rhombus are perpendicular to each other. The diagonals of a rhombus bisect its angles.

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Square A rectangle in which all sides are of equal length.

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**Trapezoid What is a trapezoid?**

A quadrilateral in which only one pair of opposite sides are parallel.

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Isosceles Trapezoid A trapezoid in which the nonparallel sides are equal.

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Kite A kite is a quadrilateral with two pairs of adjacent sides congruent and no opposite sides congruent.

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**Quadrilateral Relationships**

Quadrilaterals Kite Parallelograms Trapezoids Rectangles Rhombus Isosceles Trapezoids Squares

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Homework Work Packet: Quadrilaterals

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