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Quadrilateral Quandary (Posted on 2014-11-02) Difficulty: 3 of 5
Consider a piece of convex paper quadrilateral ABCD with AB=1, BC=2, CD=3, AD=4 and ∠ ADC = 30o

A is folded on to C forming the crease EF with E in AD and F in BC.

  • The length of the crease EF.
  • The area of the quadrilateral EFCD.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Some ThoughtsGeometers' Sketchpad approximationsCharlie2014-11-02 22:26:15
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