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Rhombi & Squares Section 6-5
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rhombus – a quadrilateral with 4 congruent sides Since a rhombus is a parallelogram, it has all the properties of a parallelogram.
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Thms. 8-15, 8-16, & 8-17 The diagonals of a rhombus are perpendicular. If the diagonals of a parallelogram are perpendicular, then the parallelogram is a rhombus. Each diagonal of a rhombus bisects a pair of opposite angles.
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rhombus
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square – a quadrilateral with 4 right angles and 4 congruent sides A square is a special type of parallelogram that is also a rectangle and rhombus. It has all the characteristics of a parallelogram, a rectangle, and a rhombus.
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square
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parallelograms rectangles rhombi squares
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Joke Time What is 7Q + 3Q? You’re welcome!
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Why was six afraid of seven? Because 7 8 9. (seven ate nine)
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Who invented fractions? Henry the 1/8 th
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