view the picture all i wrote in there

http://tinypic.com/71tz7m.jpg

can you tell me what's wrong with my 3 answers? 1 correct and other 2 incorrect.

hope anyone can help me solve it

me appreciate for your all help.

isn't it IY and IB must use 180 - answer = correct answer?

 

sorry about that late i replying here due to my computer formatted recently.
thanks again