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Start with the right-angled triangle

Start with the right-angled triangle

Right-angled triangle labelled opposite, adjacent and hypotenuse relative to angle theta

A right-angled triangle has one angle of 90∘90^\circ90∘, usually shown by a small square. The longest side, opposite the right angle, is always the hypotenuse.

SOHCAHTOA (Trigonometry) Lesson

  1. IGCSE
  2. /Maths
  3. /SOHCAHTOA (Trigonometry)

Step-by-step lessons covering Oxford AQA IGCSE Maths SOHCAHTOA (Trigonometry) for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) format. Since content from any part of the specification can appear on either paper, keep number and algebra fluency sharp throughout the course rather than leaving it until near the exam.

Lessons

Reverse PercentagesStandard FormSpeed and DensityChanging the Subject of a FormulaExpanding and Factorising QuadraticsSolving QuadraticsDrawing Quadratic GraphsSimultaneous EquationsSimilar Shapes (Lengths)SOHCAHTOA (Trigonometry)Venn DiagramsData