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The Cosine Rule

The Cosine Rule

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Question 31

A triangle ABC with side lengths AB = 5 m, BC = 9 m, and AC = 10 m. The angle at vertex B is labeled ABC.

A triangle ABC ABC\,ABC is shown with side lengths AB=5 mAB = 5\text{ m}AB=5 m, BC=9 mBC = 9\text{ m}BC=9 m, and AC=10 mAC = 10\text{ m}AC=10 m. The angle at vertex B B\,B is labeled ABCABCABC.

Work out the size of angle ABC ABC\,ABC
Give your answer to the nearest degree.

[3]
Markscheme

The Cosine Rule Questions

  1. GCSE
  2. /Maths
  3. /The Cosine Rule

36 exam-style questions on AQA GCSE Maths The Cosine Rule. Each one has a worked solution and a mark scheme showing where the marks go.

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