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Quadrilaterals (view source)

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=Additional Information=

==Useful websites==

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1. [[~~ttp~~://www.shodor.org/ihnteractivate/discussions/Quadrilaterals/]]

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1. [[http://www.shodor.org/ihnteractivate/discussions/Quadrilaterals/]]

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2. [[http://www.mathopenref.com/quadrilateral.html]]

==Reference Books==

123

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