You are testing H0:μ = 100 against Ha: μ > 100 based on an SRS of 16 observations from a Normal population. The t statistic is t = 2.13. The P-value for the statistic

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.