podaj rownania prostych, w ktorych zawieraja sie boki trojkata ABC.
a) A(-2,-1) B(4,2,) C(1,5)
b)A(-3,-2) B(2,-2) C(1,5)
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a)
AB: y=[2+1]/[4+2]*(x + 2) - 1 = 1/2x
AC: y=[5+1]/[1+2]*(x +2) - 1 = 2x + 3
BC: y=[5-2]/[1-4]*(x - 4) + 2 = -x + 6
b)
AB: y=[-2+2]/[2+3]*(x + 3) - 2 = -2
AC: y=[5+2]/[1+3]*(x + 3) - 2 = 7/4x + 13/4
BC: y=[5+2]/[1-2]*(x - 2) - 2 = -7x + 12