The Cosine Rule
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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.

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The Cosine Rule Questions

Practise Eduqas GCSE Maths The Cosine Rule with exam-style questions for Foundation and Higher tier. 44 questions, matched to the Eduqas GCSE Maths (C300QS) specification and written in Component 1 and Component 2 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.

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The Cosine Rule Questions

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