Suppose you invest $10,410 in equipment to manufacture a new board game. each game costs $2.65 to manufacture and sells for $20. how many games must you make and sell before your business breaks even?
a. 500 games
c. 600 games
b. 550 games
d. 650 games

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.