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The Cosine Rule

The Cosine Rule

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Question 34

A triangle with side lengths (x+2), sqrt(73), and (2x-3). The angle between the sides (x+2) and (2x-3) is 60 degrees.

A triangle is shown with the following side lengths and angle:

  • The left side has length (x+2)(x + 2)(x+2).
  • The right side has length 73\sqrt{73}73​.
  • The base has length (2x−3)(2x - 3)(2x−3).
  • The interior angle between the left side and the base is 60∘60^\circ60∘.

Work out the value of xxx.

[5]
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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