Question

How do you use the Law of Sines given A=150 degrees, C= 20 degrees, a= 200?

Answer 1

Solve triangle knowing A = 150, C = 20, and a = 200

Ans: B = 10 deg; b = 68; c = 136

Explanation:

Find B, a and c
Angle B = 180 - A - C = 180 - 150 - 20 = 10
`b/sin B = a/sin A` --> `b = a(sin B/sin A) = 200(0.17/0.50) = 68`.
`c = a(sin C/sin A) = 200(0.34/0.50) = 136.`