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Mathematics 9 Online
OpenStudy (anonymous):

I have a circle with the radius r = 7cm and a secant s = 8cm. I need to extend the length of the secant so the tangent to the circle is 5cm. Any ideas?

OpenStudy (anonymous):

Like this? |dw:1323545811114:dw|

OpenStudy (anonymous):

It's on the fifth page, I don't understand it (sorry, it's written in German) http://kswe.ch/bscw/bscw.cgi/d2400290/LsgSekantensaetze.pdf

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