The average number of people who attended football games at a stadium increased from 8,000 people in the year 2005 to 12,500 people in the year 2012. By what percentage did the average number of people at the games
increase from 2005 to 2012?
А
56.25%
B
43.75%
C 36%
D 64%

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.