GCSE Eduqas Trigonometry - Eduqas Angles of elevation and depression The three trigonometric ratios; sine, cosine and tangent are used to calculate angles and lengths in right-angled triangles.

(B) 7.7m (C) 8.5m (D) 8.8m Answer: (A) Explanation: Given that the height of ladder is 15m Let height of vertical be = h And the ladder makes an angle of elevation 60° with the wall In triangle ...

Learn and revise trigonometric ratios of sine, cosine and tangent and calculate angles and lengths in right-angled triangles with GCSE Bitesize AQA Maths.