Solve the following addition problem AND simplify your answer.

2 12/36 + 2/6 =

What properties allow transformation to be used as a problem solving tool

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

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.