A triangular park is formed by three vertices XXX, YYY, and ZZZ. The side XY XY\,XY measures 25.5 m and the side XZ XZ\,XZ measures 18.2 m. The total area of the park is 150 m2.
Calculate the perimeter of the park XYZXYZXYZ.
Give your answer to 3 significant figures.
Practise OCR GCSE Maths The Cosine Rule with exam-style questions for Foundation and Higher tier. 44 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.