Difference between revisions of "Nine point circle"

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−	Also known as Euler's circle or Feuerbach's circle, as its name introduces itself that the nine point circle passes nine points, which are a given triangle <math>\triangle ABC</math>'s feet of altitude dropped from three vertices <math>A,B</math>, and <math>C</math>, usually denoted as <math>H_A,H_B,H_C</math>, and midpoints of three sides, as <math>M_A,M_B,M_C</math>, and three [[~~Euler~~ point]]~~s <math>E_A,E_B,E_C</math>.~~	+	#REDIRECT[[Nine-point circle]]