DDD, E E\,E and F F\,F are points on the circumference of a circle, centre OOO. DE DE\,DE is a diameter.
Angle FDE=(4x+10)∘FDE = (4x + 10)^\circFDE=(4x+10)∘ Angle DEF=x∘DEF = x^\circDEF=x∘
Find the value of xxx.
You must show all your working.
Practise AQA GCSE Maths Circle Theorems with exam-style questions for Foundation and Higher tier. 72 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.