Law of Sines and Law of Cosines - Guided Notes

These notes, in the style of a graphic organizer, can be used to introduce the Law of Sines and the Law of Cosines (also known as the Sine Rule and Cosine Rule). The notes include examples and "You-Dos" (student practice problems).

Complete lesson! Answer key included!

*I've used these notes in Pre-Calculus and IB Math Studies.

For a follow-up worksheet, check out Practice with Law of Sines and Law of Cosines – Worksheet.

Note: This activity is included in my Trigonometry Unit – Bundle of Resources. Check it out if you are interested in purchasing this resource, along with others, at a discounted rate!


Here is a complete listing of my other resources for Trigonometry:
Angles of Elevation and Depression: Real Life Applications of Trigonometry
Coterminal Angles and Radian/Degree Conversions – Row Relay
Evaluating Trig Expressions with Sum and Difference Formulas - Riddle Worksheet
Graping the Tangent Function – Discovery Learning Notes
Identifying Amplitude and Period of Sine and Cosine Graphs – Stained Glass
Law of Sines and Law of Cosines – Guided Notes
Practice with Law of Sines and Law of Cosines – Worksheet
Right Triangle Trigonometry - Centers
Sine and Cosine Graphs – Snowflake Cut-Out Activity
Solving Trig Equations – Riddle Worksheet
Trig Coterminal Angles (in Degrees) – Square Puzzle
Trig Identities #1 – People Search
Trig Identities #2 – People Search
Trig Memory Game – Learning the 1st Quadrant
Trig Triangles: Practicing Trigonometric Identities
Trig Values from the Unit Circle – Square Puzzle
Trigonometry Test Review – Worksheet and Solutions
Trigonometry Unit – Word Wall
Unit on Trigonometry – Warm-ups and Practice Problems (.ppt)