Hi I think that we should help each other. If someone resolves a problem he/she must help the others with materials or links where the algorithm/formula is explained. This is the reason we are users of such sites - because we want to improve our programming skills.
So I decided to help all of you who find this problem difficult. Here you can find help:

http://en.wikipedia.org/wiki/Circular_segment

http://www.mathopenref.com/segmentarea.html

The rest is up to you!
HTH

Edited by author 22.10.2013 12:23

Thanks a lot...
^_^

Thank you

thanks dude, i didn't even understood what the question was asking :)

Thanks, bro, you are real man!