Radian measure
What Radian measure means in Mathematics A-Level, as defined for AQA, Pearson Edexcel.
Definitions of Radian measure
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Reference: AQA
An alternative to degrees, converted using π radians = 180°, and used for arc length l = rθ and sector area A = ½r²θ.
A measure in which π radians = 180°, so 60° = π/3.
Topics that use Radian measure
- E: Trigonometry (AQA A-Level)
- Trigonometry (Pearson Edexcel A-Level)
Related terms
- Identity
- period
- Periodicity
- principal value
- Radian
- small-angle approximation
- Trigonometric identities
- Algebraic manipulation
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