Thank you so much @CPhill. youre so generous.
one last question, how can i solve like this? this difficult. :3
a=62 degrees 40', b=796
B=51 degrees 10', c=0.832
B=41 degrees 25', c=3265
B= 62 degrees, a=0.8263
B=47 degrees 23', b=72.55
a=24 degrees 47', b=318.4