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The Cosine Rule

The Cosine Rule

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Question 20

Triangle ABC with side AC = 15 cm, side BC = 12 cm, and angle C = 20 degrees.

A triangle with vertices A, B, and C. The side AC is labeled 15 cm. The side BC is labeled 12 cm. The interior angle at vertex C is labeled 20∘20^\circ20∘.

Work out the length of AB.
Give your answer to 1 decimal place.

[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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