This month the salesman had $16,000 in sales. What amount of commission, in dollars, did he eam The salesman earns 10% off the first $10,000 made. The salesman earns 6.5% off of their sales greater than $5000.

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.