A triangle with vertices A, B, and C. The side AC is labeled 5.3 m. The side BC is labeled 6.2 m. The interior angle at vertex C is labeled 43∘43^\circ43∘. The side AB is labeled x x\,x m.
Work out the value of xxx.
Give your answer to 3 significant figures.
The Cosine Rule Questions
Practise Edexcel GCSE Maths The Cosine Rule with exam-style questions for Foundation and Higher tier. 44 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 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.