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Home  /  Algebra and Trigonometry (7e)  /  Chapter 7 · Additional Topics in Trigonometry
Section 7.2

The Law of Cosines

Law of Cosines for solving SAS and SSS cases; Heron's formula for area.

3 lessons. Pick what you need.

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Chapter 7 · Additional Topics in Trigonometry
7.1 7.2 7.3 7.4 7.5a 7.5b 7.6 7.7
Lesson

Lesson on the Law of Cosines

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Examples

Examples on the Law of Cosines with an SSS Triangle

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Lesson

Lesson on Heron's Formula for the Area of a Triangle

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