Skip to content
MathsGenie logo
Open app

Course home

  1. GCSE
  3. Maths WJEC
  5. Question bank

The Cosine Rule

MediumHard
1234567891011121314151617181920212223242526
Question 16

A structural support for a roof is shaped like a triangle with the following side lengths:

  • The first side has length (2x−7)(2x - 7)(2x−7) cm.
  • The second side has length 37 \sqrt{37}\,37​ cm.
  • The base has length (x+2)(x + 2)(x+2) cm.
  • The interior angle between the side of length (2x−7)(2x - 7)(2x−7) and the base is 60∘60^\circ60∘.

Work out the value of xxx.

[5]

The Cosine Rule Questions

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