Geometry and measures - Mensuration and calculation: know the exact values of sin θ and cos θ for θ = 0°, 30°, 45°, 60° and 90°; know the exact value of tan θ for θ = 0°, 30°, 45° and 60°(Pearson Edexcel GCSE)

Mastery Mind: Mathematics Revision · Oct 20, 2026 · 5m

Two triangles unlock the exact sine, cosine and tangent values that Edexcel GCSE candidates must recall without a calculator. Learn how to rebuild the table, use it in exact calculations, and avoid the swaps and premature rounding that cost marks. Foundation recall is clearly separated from Higher surd algebra and extensions. Listen to this audio revision guide for Geometry and measures - Mensuration and calculation: know the exact values of sin θ and cos θ for θ = 0°, 30°, 45°, 60° and 90°; know the exact value of tan θ for θ = 0°, 30°, 45° and 60°. Test your knowledge with interactive exam…