The following map shows the time it takes to drive between four cities in Texas. Monica needs to drive from San Antonio to Austin and then from Austin to Houston. How long will it take her? 3 1/4 hours
4 1/4 hours
3 1/3 hours
3 4/5 hours

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.