A cinema manager is carrying out a survey. Here is one of her questions with some response boxes.
How many times do you go to the cinema?
1
2
3
more than 5
a) Give one criticism of the question.
b) Give two criticisms of the response boxes.
+

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.