The williams family wants to buy these toys. they have $20 bills, $10 bills, $5 bills, and l bills. they want to use the least number of bills to pay for each item which bills will they use to pay for each item?

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.