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Geometry and Trigonometry · Semester 1

Sine and Cosine Rules

Students will apply the sine rule and cosine rule to solve non-right-angled triangles.

Key Questions

  1. Differentiate between scenarios where the sine rule is applicable versus the cosine rule.
  2. Analyze how ambiguous cases arise when using the sine rule and how to resolve them.
  3. Construct a problem that requires the use of both the sine and cosine rules for its solution.

MOE Syllabus Outcomes

MOE: Trigonometry - S4
Level: Secondary 4
Subject: Mathematics
Unit: Geometry and Trigonometry
Period: Semester 1

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