AQA GCSE Mathematics · 8300
Specification G20 · Paper 1, Paper 2, Paper 3
Revise: Pythagoras and TrigonometryThe important move is to identify the relevant right-angled triangles before selecting Pythagoras or a trigonometric ratio.
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GCSE Mathematics · key term
A relationship between an acute angle and two side lengths in a right-angled triangle, such as sine, cosine or tangent.
Used by AQA, Edexcel and OCR
Specification G20 · Paper 1, Paper 2, Paper 3
Revise: Pythagoras and TrigonometryThe important move is to identify the relevant right-angled triangles before selecting Pythagoras or a trigonometric ratio.
Specification G20 · Paper 1, Paper 2, Paper 3
A quotient comparing the lengths of two sides of a right-angled triangle.
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Trigonometric ratios themselves have no units because each is one length divided by another length. The missing length, however, must be reported in the units used in the question.
Specification 6.02d, 10.05b · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
A relationship comparing two sides of a right-angled triangle for a chosen angle.
A comparison of two side lengths in a right-angled triangle; sine, cosine and tangent each compare a different pair of sides.