# A triangle has sides A, B, and C. Sides A and B are of lengths #14# and #9#, respectively, and the angle between A and B is #(5pi)/12 #. What is the length of side C?

##### 1 Answer

Feb 3, 2018

**The length of side C is**

#### Explanation:

Angle between Sides

Cosine rule: (for all triangles)

The length of side C is