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The Cosine Rule

The Cosine Rule

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Question 15

The diagram shows triangle XYZXYZXYZ. The side XZ XZ\,XZ is 12.6 cm, the side YZ YZ\,YZ is 15.1 cm, and the angle ∠XZY=35∘\angle XZY = 35^\circ∠XZY=35∘. The side XY XY\,XY is labeled z z\,z cm.

Triangle XYZ with side XZ = 12.6 cm, side YZ = 15.1 cm, angle Z = 35 degrees, and side XY = z cm.

Calculate the length of zzz. Give your answer to 3 significant figures.

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Markscheme

The Cosine Rule Questions

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

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

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