geometry/notes 8.4
DESCRIPTION
TRANSCRIPT
![Page 1: Geometry/Notes 8.4](https://reader033.vdocuments.site/reader033/viewer/2022061206/5482980eb47959dd0c8b4879/html5/thumbnails/1.jpg)
RectanglesSECTION 8.4
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What are the properties of a rectangle?How do I tell if a parallelogram is a rectangle?
RECTANGLES
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Rectangle: A quadrilateral with 4 right angles.
How does this compare to a parallelogram?
RECTANGLE
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1. Opposite Sides are and 2. Opposite s are 3. Consecutive s are supplementary4. Diagonals are and diagonals bisect each other5. All four s are right6. If a parallelogram is a rectangle, then the diagonals
are
PROPERTIES
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Quadrilateral RSTU is a rectangle. RT = 6x + 4SU = 7x - 4Find x
EXAMPLE
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Quadrilateral EFGH is a rectangleFH = 5x + 4GE = 7x – 6Find x
EXAMPLE
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Quadrilateral LMNP is a rectangleFind x and y
EXAMPLE
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Quadrilateral EFGH is a rectangleFind x and y
EXAMPLE
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Given points A(-2, 1), B(4, 3), C(5, 0) and D(-1, -2)Prove that ABCD a rectangle using the slope
formula.
EXAMPLE
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Given points W(-2, 1), X(-1, 3), Y(3, 1), and Z(2, -1).Is this a rectangle?
EXAMPLE
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Page 428 10 – 14 (Evens) 16 – 24 (all) 26, 28, and 36
HOMEWORK
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LESSON PLAN
Intro Special parallelogram called a rectangle
Standards- 8.4Supplies – slides, whiteboard, handouts,Timing - 1 day 1 review day and a quizEssential Questions- slide 2 Input – slides 3 - 4Guided Practice – slides 5 - 10 Independent Practice – bookwork