He says that the plotted point is (0.5,0.25). What is Hassan's error? O The x- and y-coordinates are switched.
Both coordinates should be negative.
The x-coordinate should be -2.
O The y-coordinate should be -1.

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.