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The Cosine Rule

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Question 6
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A triangular plot of land has side lengths 15 m, 18 m, and 22 m. The angle between the 15 m and 18 m sides is labeled y∘y^\circy∘.

Work out the value of yyy.

Give your answer to 1 decimal place.

[3]

The Cosine Rule Questions

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

Practise AQA GCSE Maths The Cosine Rule with exam-style questions for Foundation and Higher tier. 41 questions, matched to the AQA GCSE Maths (8300) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank