Sx=x-x0=8-5=3 Sy=y-y0=7-5=2 tga=Sy/Sx=2/3=0,666 a=arctg(0,666)=34 градуса
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Sx=x-x0=8-5=3 Sy=y-y0=7-5=2 tga=Sy/Sx=2/3=0,666 a=arctg(0,666)=34 градуса