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Geometry & MeasuresMedium Exam FrequencyAQAEdexcelOCRWJEC

Sine Rule

Revise Sine Rule in Geometry & Measures for GCSE Mathematics with 12 exam-style questions and 3 flashcards. This topic appears regularly enough that it should be part of a solid GCSE revision cycle.

Study this topic

1

Beyond Right Angles

Introduction2

The Sine Rule

Key Facts3

Method

Deep Dive4

Worked Example: Finding a Side

Notes

Sample Flashcards

Sine Rule
a/sinA = b/sinB = c/sinC. Use when you have a matched pair (side with opposite angle).
Sine Rule
a/sin A = b/sin B = c/sin C

Sample Questions

Which of the following is the sine rule?

  • A. a/sinA = b/sinB = c/sinC
  • B. a² = b² + c² − 2bc cosA
  • C. Area = ½ab sinC
  • D. sinA/a = sinB/b + sinC/c
1 markfoundation

Explain what is meant by the ambiguous case of the sine rule, and state when it can occur.

3 markshigher

12

exam-style questions

3

revision flashcards

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