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October 21, 2014

October 21, 2014

Posted by **Anonymous** on Sunday, May 6, 2012 at 1:56pm.

A. 8 cm

B. 10 cm

C. 12 cm

D. 13 cm

- geometry -
**MathMate**, Sunday, May 6, 2012 at 5:06pmDraw the figure and convince yourself that the radius of the circle is given by Pythagoras theorem

r^2=sqrt(13^2-5^2)

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