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Math Help - Construction help!

  1. #1
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    Construction help!

    Using your straight edge only, construct a line perpendicular to the diameter of a circle containing an external point p above the circle. Thanks!
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  2. #2
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    Re: Construction help!

    Let the end points of the diameter be A and B. Join BP, preferably the point nearest to P. Now mark point Q on line AB such that BP = PQ. find the midpoint R of BP. Join PR it will be perpendicular to AB.
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