2. CHAPTER 5 LESSON 4 The Law of Sines

3. VOCABULARY  None

4. THEOREM (SAS AREA FORMULA FOR A TRIANGLE)  In any triangle the area is one half the product of the lengths of any two sides and the sine of their included angle

5. EXAMPLES

7. THEOREM (LAW OF SINES)  In any triangle ABC,

8. EXAMPLES

12. LAW OF SINES VS. LAW OF COSINES  Law of Sines works best with the following triangle conditions:  Angle Side Angle, Angle Angle Side, and Side Side Angle  Law of Cosines works best with the following triangle conditions:  Side Angle Side and Side Side Side

15. HOMEWORK  5-4 Worksheet