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Published byNoreen Carol Nash Modified over 8 years ago

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CP Geometry Mr. Gallo

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Classifying Polygons in the Coordinate Use three formulas: FormulaWhen to Use it Distance FormulaTo determine whether: Sides are congruent Diagonals are congruent Midpoint Formula To determine: Coordinates of midpoint of side Whether diagonals bisect each other Slope Formula To determine whether: Opposite sides are parallel Diagonals are perpendicular Sides are perpendicular

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Use the distance formula to find the side lengths:

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Is parallelogram ACBD a rhombus? Explain. It is a rhombus Use the slope formula to find the slopes of the diagonals: Product of slopes:

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What is the most precise classification of the quadrilateral formed by connecting the midpoints of the sides of the isosceles trapezoid? Use the midpoint formula to find the midpoints of the sides:

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Use the distance formula to find the side lengths: Find the slopes of the sides: Product of slopes: It is a rhombus

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Complete Got It? #1, 2 & 3 p.401-402

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Homework: p.403 #22-30 even, 45-48

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