Calculate the value of a,A and C in angle ABC, given that b=17.23cm c=10.86cm and B=115°

Answer 1

Law of sines
sin C /c = sin B / b
then you have angles B and C
but we all know
A + B + C =180
so that gives you angle A
then of course you can use law of sines again to find a

Answer 2

This is not impressive

Answer 3

Sorry you are right but you did not explain

Answer 4

Sin C/c =sin B/b
sin C/10.86 =Sin 115/17.23
sin c=10.86×sin115/17.23
sin c=9.8424/17.23
sin c=0.5712
c=sin-¡ 0.5712
c=34.836
c=34.84