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**Classifying Quadrilaterals**

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**What is a quadrilateral?**

A quadrilateral is a closed 2 dimensional figure with that are line segments. four sides

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**What is a parallelogram?**

Quadrilateral – 4 sides Opposite sides congruent Opposite sides parallel

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**What is a rectangle? Quadrilateral- 4 sides Four right angles.**

Parallelogram- opposite sides parallel Four right angles.

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**What is a rhombus? Quadrilateral- 4 sides**

Parallelogram- opposite sides parallel Four congruent sides.

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**What is a square? Quadrilateral – 4 sides**

Parallelogram- opposite sides parallel Rectangle- 4 right angles Rhombus- 4 sides congruent

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**What is a trapezoid? Quadrilateral – 4 sides**

Exactly one pair of parallel sides

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Quadrilateral Parallelogram Rhombus Rectangle Square Trapezoid

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**What are all of the names for this polygon?**

Quadrilateral Parallelogram Rectangle Which name best describes the shape?

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**What are all of the names for this polygon?**

Quadrilateral Parallelogram Which name best describes the shape?

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**What are all of the names for this polygon?**

Quadrilateral Parallelogram Rhombus Which name best describes the shape?

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**What are all of the names for this polygon?**

Quadrilateral Trapezoid Which name best describes the shape?

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**What are all of the names for this polygon?**

Quadrilateral Parallelogram Square Rhombus Rectangle Which name best describes the shape?

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**Property of quadrilaterals**

The sum of all the angles equals 360º degrees. 90º 90º 90º 90º

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**Property of Quadrilaterals**

The sum of all the angles equals 360º degrees. 70º 70º 70º 70º 110º 110º + 110º 110º 360º

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**Property of Quadrilaterals**

The sum of all the angles equals 360º degrees. 65º 65º 115º 65º 115º 115º + 65º 115º 360º

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**What is the missing angle?**

58º 109º 81º ? 109º 58º 81º + ? 360º

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