Skip to content
MathsGenie logo
Open app

Course home

  1. GCSE
  3. Maths WJEC
  5. Question bank

The Cosine Rule

MediumHard
1234567891011121314151617181920212223242526
Question 7

A triangular garden plot is designed with the following dimensions:

  • The left side has length (x+1)(x + 1)(x+1) metres.
  • The right side has length 19 \sqrt{19}\,19​ metres.
  • The base has length (2x+1)(2x + 1)(2x+1) metres.
  • The interior angle between the left side 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