Go back to previous page
Forum URL: http://www.cut-the-knot.org/cgi-bin/dcforum/forumctk.cgi
Forum Name: College math
Topic ID: 660
Message ID: 7
#7, RE: Simple Area Facts In Parallelogram And Quadrilateral
Posted by alexb on Nov-30-07 at 00:03 AM
In response to message #5
Another view:
http://www.cut-the-knot.org/Curriculum/Geometry/EuclidI43Extended.shtml

(preliminary)

Red and blue areas are equal.