Incircle and Excircles of A Triangle - Equations For Four Circles

Equations For Four Circles

Let x : y : z be a variable point in trilinear coordinates, and let u = cos2(A/2), v = cos2(B/2), w = cos2(C/2). The four circles described above are given by these equations:

  • Incircle:
  • A-excircle:
  • B-excircle:
  • C-excircle:

Read more about this topic:  Incircle And Excircles Of A Triangle

Famous quotes containing the word circles:

    And why do you cry, my dear, why do you cry?
    It is all in the whirling circles of time.
    If millions are born millions must die,
    Robinson Jeffers (1887–1962)