Marcy got tickets to see the backstreet boys in las vegas. she wanted to sit in the middle seat of row 1 section 205, which is designated by point b because she feels it will have the largest viewing angle. is this true? is there another seat in row 1 that gives her as big a viewing angle? if so, why are the seats as good and what type of angles to they form?

No, False. All seats in row 1 are same viewing angle. They are inscribed angles measuring 90 degrees. All the seats on row 1 will have the exact same viewing angle because they form a semi-circle around the stage. these would be inscribed angles that have the endpoints of the stage. They would all be 90-degree agles because the stage creates a semicircle and the endpoints of the stage are all the same. 

A=bxh3.2x1.8=5.76 centimeters square