Cambridge IGCSE Mathematics
6.2Right-angled triangles
Right-angled triangles in Cambridge IGCSE Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic49 practice questions2 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 6.2.1Use the sine, cosine and tangent ratios of acute angles to find sides and angles of right-angled triangles, giving angles to one decimal place.
- 6.2.2Solve two-dimensional problems using Pythagoras' theorem and trigonometry, including problems with bearings.
- 6.2.3Extended: know that the perpendicular distance from a point to a line is the shortest distance to the line.
- 6.2.4Extended: solve problems involving angles of elevation and depression.
Lessons
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Angles of elevation and depression
20 min
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Trigonometry in right-angled triangles
25 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Right-angled triangles into a strength.
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