Read through “Example 4” on pages 173 and 174 of the textbook. As you read, compare the method you used to solve Try This 5 to the two methods used in “Example 4.” Note the two different methods used to find the solution:

• formula a = θr
• proportions

When using the formula a = θr, ensure θ is in radians rather than degrees.

Add the formula for determining arc length to your copy of Formula Sheet.

Self-Check 3

1. Complete “Your Turn” on page 174 of the textbook. Answer
2. Complete question 15 on page 177 of the textbook. Answer
3. Complete questions 20.a. and b. on page 178 of the textbook. Answer

Add the following terms to your copy of Glossary Terms:

• coterminal angles
• general form
• arc length