
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 OCR GCSE Maths Exact trig values with exam-style questions for Foundation and Higher tier. 64 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.