Trigonometry (Chapter 1)
Lesson 5: The Cosine Law (1.4)
Note: Use Sine Law and Cosine Law to solve non-right triangles only!
Note: Use Sine Law and Cosine Law to solve non-right triangles only!
Video 1: When to Use the Cosine Law
Video 2: Introduction to the Cosine Law
Video 3: Finding a Side of a Non-Right Triangle Using Cosine Law
Important:
Answers are more accurate if you leave the expressions as is when using the calculator.
Important:
Answers are more accurate if you leave the expressions as is when using the calculator.
Video 4: Finding an Angle of a Non-Right Triangle Using Cosine Law
Important:
Answers are more accurate if you leave the expressions as is when using the calculator.
Important:
Answers are more accurate if you leave the expressions as is when using the calculator.
Video 5: Solving Non-Right Triangles Using Cosine Law
Trig Summary
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Worksheet 1-6
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SmartBoard Notes:
ws1-6_classnotes.pdf | |
File Size: | 256 kb |
File Type: |
Assigned Work:
1. Worksheet 1-6
2. Do exercises on p. 39 - #1 to 4
1. Worksheet 1-6
2. Do exercises on p. 39 - #1 to 4