Question

I don't know how to draw it, but picture this: There's a triangle pointing to the right with P as the tip. The bases have Points B on the top and A on the bottom. In between segments PB and PA, there's points C and D respectively and they are connected with line CD. (This forms a trapezoid and a little triangle at the top) So, it's given that BC is congruent to AD. Prove that AB is NOT congruent to CD.