Tags: Orthocenter View |
Tags: Orthocenter View |
Orthocenter K the common intersection of the three lines containing the altitudes An altitude is a perpendicular segment from a vertex to the line of the opposite side Tags: Orthocenter View |
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looking for But I promised nine points not just six So consider the next diagram in which the three altitudes and thus the orthocenter O are drawn I ll explain points X and Y below Since 3 points completely determine a circle the three feet of the altitudes of any triangle must be on its nine point circle and that circle must thus contain the three midpoints of Tags: Orthocenter View |
