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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- Feb 28th 2013, 07:55 PMJammixConstruction 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!

- Feb 28th 2013, 08:57 PMibduttRe: 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.