A metal bracket is in the shape of a triangle with side lengths 12 cm, 18 cm, and 25 cm. The angle between the 12 cm and 18 cm sides is x∘x^\circx∘.
Work out the value of xxx.
Give your answer to 3 significant figures.
Practise AQA GCSE Maths The Cosine Rule with exam-style questions for Foundation and Higher tier. 44 questions, matched to the AQA GCSE Maths (8300) 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.