Question

define nine point circle

Answer 1

In geometry, the nine-point circle is a circle that can be constructed for any giventriangle. It is so named because it passes through nine significant concyclic points defined from the triangle. These nine points are:*.The midpoint of each side of the triangle*.The foot of each altitude*.The midpoint of theline segmentfrom each vertex of the triangle to the orthocenter(where the three altitudes meet; these line segments lie on their respective altitudes)
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