Revising the Cosine Rule

Revising the Cosine Rule
Revising the Cosine Rule

              Revising the Cosine Rule

              Students revise how to use the Cosine Rule to calculate unknown lengths and angles in non-right-angled triangles.  As learning progresses they use the Cosine and Area of a Triangle rules.
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              Scheme of Work Link
              Trigonometry - Non-Right-Angled Triangles
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