A triangle with vertices AAA, BBB, and C C\,C is shown. Side AB AB\,AB has a length of 8 m, and side AC AC\,AC has a length of 11 m. The angle at vertex A A\,A is 35∘35^\circ35∘.
Work out the length of BCBCBC.
Give your answer to 3 significant figures.
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.