05-08-2014
Mathematics

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Given that the points form a figure with 4 right angles do the points (-2,8), (4,8), (4,5) and (-2,5), represent the vertices of a square or a rectangle, explain

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Аноним Аноним

05-08-2014

[tex]A(-2;\ 8);\ B(4;\ 8)\\\\|AB|=|-2-4|=|-6|=6\\\\C(4;\ 5);\ D(-2;\ 5)\\\\|CD|=|4-(-2)|=|4+2|=|6|=6\\\\|AB|=|CD|\\\\|AD|=|8-5|=|3|=3\\\\|BC|=|8-5|=|3|=3\\\\|AD|=|BC|\ but\ |AB|\neq|AD|...\\\\Answer:the\ rectangle[/tex]

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