Need Help

Discussion in 'Green Room' started by Gary Pandher, May 25, 2003.

  1. Gary Pandher

    Gary Pandher Moderator

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    i am currently working to solve this problem

    Let points A, B, C, D and E occur in that order on a circle.
    Form a pentagram by drawing the chords AC, CE, EB, BD, and DA.
    There are five "tip triangles" in this figure (for instance, one
    tip triangle has as vertices B and the two points of intersection
    of the chord AC with the chords BD and EB). Prove that the
    pentagram is regular (i.e., the points A, B, C, D and E are the
    vertices of a regular pentagon) if and only if the five tip
    triangles have the same area.


    in a pentagon what do the angles add up to?..
    also if you know of a way to solve this could you share the solution that you have or have come up with please?..thanks for all your help guys
     
  2. Geffy

    Geffy Moderator Folding Team

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    I got to about the word chords and my mind left, but it is 4am here
     
  3. Octopus

    Octopus Moderator

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    don't know my conclusion:
    the vertices give you the mid-point
    the angle between AC=the angle btween CE..etc

    if EB=BD then D=E ( divide by B)

    I hate math
     
  4. Gary Pandher

    Gary Pandher Moderator

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    884
    :S im confused bout what i asked and what u answered after reading that lol...
    anone know the formula to get the area of a pentagon?
     
  5. Khayman

    Khayman I'm sorry Hal... Political User Folding Team

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