Discover how to apply the Law of Sines to find unknown side and angle measures. A detailed video lesson describes the Law of Sines in different forms. The instructor completes two different examples that find both an angle and side measure including a step-by-step algebra review.

Concepts

law of sines, law of cosines, trigonometry applications

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Additional Tags

math

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Instructional Ideas

• Have pupils record new formulas and examples as notes in a graphic organizer
• Follow the lesson with focused practice using a mix of problems finding both angle and side measures

Classroom Considerations

• Builds from prior knowledge of right triangle trigonometry

• This video is hosted on YouTube

Pros

• Includes an abbreviated transcript for quick review
• Provides a summary at the end of the video

Cons

• None

Common Core

SL.9-10.2 HSG-SRT.D.10 RST.9-10.7