Saturday, December 26, 2009

Problem 409: Quadrilateral, Diagonals, Perpendicular, Congruence

Proposed Problem
Click the figure below to see the complete problem 409 about Quadrilateral, Diagonals, Perpendicular, Congruence.

Problem 409: Quadrilateral, Diagonals, Perpendicular, Congruence.
See also:
Complete Problem 409
Level: High School, SAT Prep, College geometry

Posted by Antonio Gutierrez at 1:17 PM
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6 comments:

  1. http://geometri-problemleri.blogspot.com/2009/12/problem-57-ve-cozumu.html

    ReplyDelete

  2. there is not enough data to solve this^probleme. Values of angles ACB et ACD are irrelevant.

    ReplyDelete

  3. Values of angles ACB and CAD are relevant.

    ReplyDelete

  4. OD=a
    OA=atan80
    OB=atan80tan20
    OC=atan80tan20tan40
    tanx=OC/OD=tan20tan40tan80=tan60
    x=60
    .-.

    ReplyDelete

  5. Can this problem be solved without trig?

    bjhvash44@sbcglobal.net

    ReplyDelete

  6. Yes, this problem can be solved without trigonometry.

    ReplyDelete

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