Friday, November 7, 2008

Elearn Geometry Problem 202: Right Triangle, Excircles, Semiperimeter

Right triangle

See complete Problem 202 at:
gogeometry.com/problem/p202_right_triangle_tangent_excircles.htm

Right Triangle, Incircle, Excircles, Points of Tangency, Exradius relatives to catheti, Semiperimeter. Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

1 comment:

  1. name K circle meet BC, T circle meet CB

    b + a + c = 2s
    r + DC + BK - DC + BE - r = 2s ( CK = CD,)
    2BK = 2s
    BK = s
    c + r = s

    r = s - c ( r = Rb)
    ----------------------------------------------------
    b + a + c = 2s
    CM - r + CT - BT + r + BG = 2s
    2CM = 2s
    CM = s
    r + b = s

    r = s - b ( r = Rc)
    ------------------------------------------------
    for others see P200, P201

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