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April 17, 2014

April 17, 2014

Posted by **Eliza** on Sunday, December 5, 2010 at 10:55pm.

- geometry -
**Jennifer**, Sunday, December 5, 2010 at 11:13pmLet r=AB. Since we were given AC=12 and angle B=60, we can use:

sin 60 = 12/r

Solving for r we have:

r = 12/sin 60 = 13.86

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