
A right-angled triangle DEF DEF\,DEF is shown. The right angle is at vertex EEE. The side DE DE\,DE is 9 cm. The angle at vertex D D\,D is 60∘60^\circ60∘.
Calculate the length DFDFDF.
Practise AQA GCSE Maths Exact trig values with exam-style questions for Foundation and Higher tier. 64 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.