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Oppisite sides are congruent. Diagonals are congruent
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Rhombus
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Diagonals are perpendicular. Not all sides are congruent
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Kite
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Diagonals are congruent. Opposite angles are not
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Insoles trapezoid
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Diagonals bisect each other. Not all sides are congruent. Not all angles are congruent
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parallelogram
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Area of a trapezoid
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a = 1/2h (b1+ b2)
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Area of a kite
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A = ½ (d1xd2)
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Area of a Rhomubs
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A = ½ (d1xd2)
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Pythagorean Theorm
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a2+ b2 = c2
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Side splitter
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Step 1: cross multiply Step 2: solve for x
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Arc length
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Arc measure/ 360x2πr
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Area of a sector
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Measurement/sector (2πr)
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Area of a segment
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Area of a sector- measure/360 (πr2) - 1/2h
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Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
