A triangle with vertices labeled AAA, BBB, and CCC. The side AB AB\,AB is labeled 19.7 m, and the side AC AC\,AC is labeled 15.4 m. The area of the triangle is 100 m2.
Calculate the perimeter of triangle ABCABCABC.
Give your answer to 3 significant figures.
The Cosine Rule Questions
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.