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swim · 06-10-2006, 03:25 PM

Why?
If you explain I might remember stuff.
Edit: I think BC= 21

4/(7+x)= 3/x

The radi are 3 and 4 so that's where I got 7 from. X is BC.

4x=3x+21
x=21

06-10-2006, 03:25 PM	#6 (permalink)
swim dontcareaboutyou Join Date: Apr 2006 Location: North Carolina Posts: 5,145	Why? If you explain I might remember stuff. Edit: I think BC= 21 4/(7+x)= 3/x The radi are 3 and 4 so that's where I got 7 from. X is BC. 4x=3x+21 x=21 __________________ http://nakednaps.bandcamp.com/