oblicz wyskosc trojkata ABC poprowadzaona z wiercholka C na bok AB oraz pole P trojkąta , gdy : A = (-6, -4) B = (2, 8) C = (4, -8)
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P=1/2|d(AB,AC)|=1/2·|-32-120|=76
BC=[2,-16]
|BC|=√(4+256)=2√65
P=1/2|BC|·h
h=2P/|BC|=152/(2√65)=76/√65
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