this is a well above the standed question for a yr 10 geometry assignment i am working on
so the first thing i did was to draw a diameter from a to a new point g, which the i joined two lines from g to d and e, the next thing i did was to find 3 right angles in the circle so i could try to find a relationship between g,d,a and a,e,d
but now i am kinda stuck
any help would be greatly appreciated
VICIOUS CIRLES: The Alternate Segment Theorem!
Or this: Circle Theorems
Or even this: http://www.benjamin-mills.com/maths/...rems-proof.pdf (not bad for a student of his age)