October 2018 1 39 Report

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punkty a=(-3,1) i c=(7,1) sa przeciwleglymi wierzcholkami rombu abcd o boku rownym 8. wyznacz wspolrzedne wierzcholkow b i d oraz pole rombu.

dokladne obliczenia.

odp:

B=(2;1-\sqrt{39}),\ D=(2;1+\sqrt{39}),\ P_{ABCD}=10\sqrt{39}


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