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Activity
Bbc: Gcse Bitesize: Sine and Cosine Rules Activity
BBC

Bbc: Gcse Bitesize: Sine and Cosine Rules

For Students 9th - 10th Standards
BBC provides a three part lesson on solving triangles, by using the sine rule and cosine rule.
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Activity
Math Is Fun: Triangle Identities Activity
Math Is Fun

Math Is Fun: Triangle Identities

For Students 9th - 10th Standards
View examples of triangle identities, equations that are true for all triangles: Law of Sines, Law of Cosines, and Law of Tangents. Follow links to learn more about the purpose and examples of each identity.
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Handout
Math Is Fun: The Law of Cosines Handout
Math Is Fun

Math Is Fun: The Law of Cosines

For Students 9th - 10th Standards
Students learn about the law of cosines. The tutorial consists of a definition, examples, and practice problems to check for comprehension.
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Activity
Cut the Knot!: The Law of Cosines (Cosine Rule) Activity
Cut the Knot

Cut the Knot!: The Law of Cosines (Cosine Rule)

For Students 9th - 10th Standards
This site from Cut The Knot provides an overview of the law of cosines, complete with an explanation of the law and a proof of the law.
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