Question

In triangle ABC of angle A=120 , b=3 a=8 what is B

Answer 1

sinA/a = sinB/b

sin120/8 = sinB/3

3sin120 = 8sinB

3sin120/8 = sinB

sin^-1(3sin120/8) = B

B ≈ 18.951

Hope this helps! ;)