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OpenStudy (anonymous):
Find the orthocenter of triangle ABC with vertices A(1,-3), B(2,7), C(-2,-3)
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OpenStudy (anonymous):
@Callisto @ganeshie8 @robtobey @Waarvik
OpenStudy (callisto):
|dw:1374317186990:dw|
OpenStudy (callisto):
1. orthocentre is the intersection of 3 altitudes of a triangle. Since AC // x-axis, altitude of triangle from point B is perpendicular to AC, so we have this |dw:1374317502443:dw| The orthocentre of the triangle must have the same ___-coordinate as point B?
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