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30 December, 18:12

Is ab perpendicular to cd A (0,2) B (-3,-3) C (-4,1) D (0,-2)

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  1. 30 December, 18:32
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    Find the slopes of the 2 line segments and see if they are negative reciprocals then the lines are perpendicular.

    AB slope is - 3-2/-3-0 = - 5/-3=5/3

    CD slope is - 2-1/0 - - 4=-3/4

    The lines are not perpendicular
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