09 Jun '04 02:40>
Originally posted by TDR1Opposite angles are supplementary if two of the sides are parallel, which we do not know is the case with trapazoid BCED; I think we can more or less rule that out, because the base angles are the same, but the points D and E are definitely on different parts of their respective lines, given the angles they form with vertices C and B respectively.
i think this is true.....opposite angles in a trapazoid are supplementary.....im not 100% sure bout this....but with this you can conclude that the answer is 60....im not taking random guesses...that may be wat it seems like
Nemesio