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Published bySarah Allen Modified over 9 years ago
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Section 6-4 Special Parallelograms SPI 32A: identify properties of plane figures from information in a diagram SPI 32 H: apply properties of quadrilaterals to solve a real-world problem Objectives: Use properties of diagonals of rhombuses and rectangles Determine whether a parallelogram is a rhombus or rectangle 1 2 3 4 Definition: Parallelogram is a quadrilateral with both pairs of opposite sides parallel.
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Types of Quadrilaterals Parallelogram with four congruent sides
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Theorem 6-9 Each diagonal of a rhombus bisects two angles of the rhombus. 1 2 3 4 Theorem 6-10 The diagonals of a rhombus are perpendicular.
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Types of Quadrilaterals Parallelogram with four right angles
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Theorem 6-11 The diagonals of a rectangle are congruent.
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Prentice Hall PowerPoint
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Theorem 6-9: Each diagonal of a rhombus bisects two angles of the rhombus 1 2 3 4 Given: Rhombus ABCD Prove: ABCD is a RhombusGiven Def of Rhombus ∆ABC ∆ADC 1 2 and 3 4 Therefore, Reflexive Prop of SSS CPCTC
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