Sunday, July 27, 2008

Elearn Geometry Problem 148



See complete Problem 148
Quadrilateral, Area, Midpoints. Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

2 comments:

  1. by jca
    S1+S3=[OEA]+[OHA]+[OFC]+[OGC]=[OEB]+[OHD]+[OFB]+[OGD]=[OEB]+[OFB]+[OHD]+[OGD]=S2+S4

    ReplyDelete
  2. Join each of the vertices of ABCD to O and the result is obvious

    ReplyDelete