« Trigonometric Equations 

1. to find the third side of a triangle given two sides and the included angle.
2. to find an angle when given all 3 sides.
1. We are given a, c, and <B.
2. We are given side b, c, and <A.
3. We are given b, a, and <C.
Example 1:
In triangle ABC, side a= 8 cm, c = 10 cm, and the angle at B is 60. Find side b, angle A and angle C.
Solution:
1. Side b:
2. Angle A
3. Angle C