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The Cosine Rule

The Cosine Rule

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Question 26

A triangle with vertices A, B, and C. Side AB is 5.2 m, side BC is 6.9 m, and side AC is 7.3 m.

A triangle with vertices AAA, BBB, and CCC. Side AB AB\,AB is 5.2 m, side BC BC\,BC is 6.9 m, and side AC AC\,AC is 7.3 m.

Work out the size of angle BACBACBAC.
Give your answer to 3 significant figures.

[3]
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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