On monday, it snowed a total of 15 inches. on tuesday and wednesday, it snowed an additional 4 1/2 inches and 6 3/4 inches, respectively. a weather forcaster says that over the last three days, it snowed over 2 1/2 feet. is this a valid claim?

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.