A chemist estimated the volume of a solution in a test tube to be 30 ml. The actual volume of the solution was 28.1 ml. Find the absolute error and the percent error of the chemist's estimate. If necessary, round your answers to the nearest tenth.
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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.