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The Cosine Rule

The Cosine Rule

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Question 13
67%

A triangle XYZ\, with side lengths XY = 12\text{ m}, YZ = 15\text{ m}, and XZ = 10\text{ m}. The angle at vertex Y\, is labeled XYZ.

A triangular garden XYZ XYZ\,XYZ has side lengths XY=12 mXY = 12\text{ m}XY=12 m, YZ=15 mYZ = 15\text{ m}YZ=15 m, and XZ=10 mXZ = 10\text{ m}XZ=10 m.

Work out the size of angle XYZXYZXYZ.
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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