Sine rule for area

Key term for Edexcel GCSE Mathematics, used in Mensuration and Calculation.

Definition

The formula Area = 1/2 ab sin C, used to calculate the area of any triangle without needing its perpendicular height.

Exam Context

Sine rule for area appears in Edexcel GCSE Mathematics revision content for Geometry and Measures, especially Mensuration and Calculation and Area of a Triangle.

Geometry and Measures Mensuration and Calculation Area of a Triangle

Found in Revision Notes

Geometry and Measures

Area of a Triangle

Mensuration and Calculation • Area of a Triangle

Revise note

Related Key Terms

Included angle Inverse sine (sin⁻¹)Non-right-angled triangle SAS Sine (sin)

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