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GCSE Maths

Geometry

Area of a Triangle (1/2​absinC)

Area of a Triangle (1/2​absinC)

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Key Points 

  • Formula: Area = ½ab sin C.

  • Used for non-right-angled triangles.

  • Angle C must be between sides a and b.


Keywords: area of a triangle, half absinC, sine, trigonometry, GCSE maths.

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