Lesson Details


  • Name: Cosine Rule 2
  • Code: M.4.11.T2.7
  • Specification Reference: G22
  • Keywords: Angle, side, cosine, formula, substitute, inverse, perimeter.
  • Objectives: 1. To understand how to rearrange the cosine rule to find an angle. 2. To apply the cosine rule to find missing angles. 3. To solve worded problems using the cosine rule.
  • Competency: To understand how to rearrange the cosine rule to find an angle.
  • Proficiency: To apply the cosine rule to find missing angles.
  • Mastery: To solve worded problems using the cosine rule.

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