Lesson 3
1. Lesson 3
1.6. Explore 5
Module 1: Trigonometry
Self-Check 4
Complete the following questions. Be sure to check your answers carefully to ensure that you understand the solution process. If you are still having trouble, contact your teacher.
- Complete “Check Your Understanding” question 3 on page 151 of your textbook. Answer
- Complete “Practising” questions 5 and 8 on pages 151 and 152 of your textbook. Answer
In this lesson you have learned when you can use the sine law and when you can use the cosine law. If you haven’t done so already, go to your course folder and update your notes organizer with any thoughts or key ideas about these two laws. For instance, you might find it helpful to draw a picture showing an example of the sine law and another picture showing an example of the cosine law. Remember to save your updated notes organizer to your course folder.
You may also want to add both forms of the cosine law to your Formula Sheet document. Save the Formula Sheet document to your course folder.