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pashok25 [27]
3 years ago
8

the coordinates of the endpoints of ab and cd are a(x1, y1), b(x2, y2), c(x3, y3), and d(x4, y4). which condition proves that ab

||cd?
Mathematics
2 answers:
goldenfox [79]3 years ago
6 0
(Y4-Y3 / X4-X3) = (Y2-Y1 / X2-X1)
k0ka [10]3 years ago
3 0
Two lines are parallel if they have the same slope. Computing for the slope of line segment ab and line segment cd using m=(y2-y1)/x2-x1):
m of ab=(2-1)/(2-1)=1         m of cd=<span>(4-3)/(4-3)=1
Since line segment ab and line segment cd have the same slope which is 1, then they are said to be parallel. </span>
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