What type of function is represented in the table?

What is the value of x in the diagram below?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

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.