A circle with radius 4 centimeters.
What is the area of this circle in terms of pi?
A. 8Pi cm2
B. 16Pi cm2
C. 32Pi cm2
D. 64Pi cm2

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.