### Home > PC > Chapter 6 > Lesson 6.2.3 > Problem6-95

6-95.

Draw diagrams. Find the 3rd side for each triangle.

Draw diagrams. Find the 3rd side for each triangle.

Use the angle sum and difference formula for the sine.

$\frac{2-5\sqrt{3}}{12}$

Use the angle sum and difference formula for the cosine.