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Ok, we're doing circle proofs and I am absolutely stuck.

Given: In circle O, diameter AC is extended to D such that AD is perpendicular to DF.

Prove: AF * EC = AC * FD


Please help! I'm really stuck, and it's due tomorrow. I just need someone to get me started.

-Jin
 

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just get the answer from somebody tomorrow before class. its what all the cool kids are doing
 

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Something about the triangle's sides being 180 degrees, and eC originating from line OD (The radius)
 

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*bows*

This is the first time I am actually happy I could help...wait....no.....I'm just hungey. I got it confused.
 

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im in 8th grade and in geometry its hard
 

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Aw man...our class is a day or two behind yours cause our teacher told us next class we start circle proofs. Right now we're doing geometric means and similar triangle and stuff. I remember last month when we were doing congruent triangle proofs and we were debating on whether ASS(angle-side-side) really works. It actually does on right triangles lol.
 

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I've never heard of that, I'm in 8th grade and the highest I/my class can possible go is Like advanced Algebra
 
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