In triangle ABCABCABC, the length of side AB AB\,AB is 6.5 cm and the length of side BC BC\,BC is 9.4 cm. The angle ABC ABC\,ABC is y∘y^\circy∘.
The area of triangle ABC ABC\,ABC is 22.8 cm2.
Work out the value of yyy.
Give your answer to 3 significant figures.
Practise Edexcel GCSE Maths Finding the Area of Any Triangle with exam-style questions for Foundation and Higher tier. 42 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.