### Home > A2C > Chapter 8 > Lesson 8.1.7 > Problem 8-107

8-107.

There are multiple ways to approach these problems. Try different strategies to expand your personal toolkit.

Use Hint 1 from

problem 8-106.

Let π = 180° and simplify.

Notice, you do not need a calculator if you divide 180 by 6 as your first step.

210°

Use Hint 1 or 2 from 8-106.

Simplify by factoring out Giant Ones.

Use the second part of Hint 2 from 8-106.

Use Hint 2 from 8-106 or try Hint 3:

See parts (c) and (d).

See parts (a) and (b).

630°