Snow white has 50 one-dollar bills, which she wishes to divide up among seven different dwarves. each dwarf may receive any number of bills, from 0 to 50, and all of the money will be distributed. how many different ways can she distribute this money?

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.