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Home  /  Precalculus, 2nd Edition (2e)  /  Chapter 8 · Further Applications of Trigonometry
Section 8.2

Non-right Triangles: Law of Cosines

Solving oblique triangles using the Law of Cosines; using Heron's formula for triangle area.

3 lessons. Pick what you need.

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Chapter 8 · Further Applications of Trigonometry
8.1 8.2 8.3 8.4 8.5 8.8
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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