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

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

: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?