Monday, September 29, 2014

Geometry Problem 1047: Parallelogram, Parallel Lines, Concurrent Lines, Diagonals

Geometry Problem. Post your solution in the comments box below.
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to view the complete problem 1047.

Online Math: Geometry Problem 1047: Parallelogram, Parallel Lines, Concurrent Lines, Diagonals, Polya's Mind Map.

Posted by Antonio Gutierrez at 4:47 PM
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1 comment:

  1. Ivan BazarovOctober 24, 2014 at 2:29 PM

    AG and HC meet at P, and HC and AB meet at Q. AQ=AH*CD/HD.
    Then AP/PG=AQ/CG=(AH*CD/HD)/CG=(AH*CD)/(HD*CG).
    AG and BO meet at P', and BO and CD meet at T. GT=(OG=HD)*(BE=CG)/(EO=AH)
    Then AP'/P'G=(BA=CD)/GT=CD/(HD*CG/AH)=(AH*CD)/(HD*CG)
    It has been shown that BO and HC meet at the same point of AG.

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