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The Cosine Rule

The Cosine Rule

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Question 7
30%

A triangular garden plot is designed with the following dimensions:

  • The left side has length (x+1)(x + 1)(x+1) metres.
  • The right side has length 19 \sqrt{19}\,19​ metres.
  • The base has length (2x+1)(2x + 1)(2x+1) metres.
  • The interior angle between the left side and the base is 60∘60^\circ60∘.

Work out the value of xxx.

[5]
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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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