quadrilaterals geometry mr. zampetti unit 3, day 4
TRANSCRIPT
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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.
http://craftapple.files.wordpress.com/2007/08/kite-2.jpg http://www.mathwarehouse.com/geometry/quadrilaterals/images/kites/kite_picture.jpg
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Quadrilateral Relationships
Quadrilaterals
Parallelograms
Rectangles Rhombus
Squares
Trapezoids
Isosceles Trapezoids
Kite
http://www.quia.com/pop/36149.html
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Homework
Work Packet:
Quadrilaterals
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