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25 September, 18:11

Which one of the following statements is true of a perpendicular lines

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Answers (2)
  1. 25 September, 18:16
    0
    Now, important to let AB is perpendicular to BC

    Ok then this is a rule from coordinate geometry in additional mathematics that is

    mAB * mBC = - 1
  2. 25 September, 18:33
    0
    The answer to this question is C
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