Which expression is equivalent to following? x + 12 x 2/3
A. ( 12 / 3 ) ( 2 + x )
B. 12 + x ( 2 / 3 )
C . ( 12 + x ) ( 2 / 3 )
D. ( 12 x 2 / 3 ) + x

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.