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The Cosine Rule

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Question 3
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A triangle has side lengths of 8 m, 11 m, and 14 m. The angle between the 8 m and 11 m sides is labeled x∘x^\circx∘.

Work out the value of xxx.
Give your answer to 3 significant figures.

[3]

The Cosine Rule Questions

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

Practise Edexcel GCSE Maths The Cosine Rule with exam-style questions for Foundation and Higher tier. 41 questions, matched to the Edexcel GCSE Maths (1MA1) 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