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January 28, 2015

January 28, 2015

Posted by **Anonymous** on Tuesday, July 12, 2011 at 7:14pm.

- geometry -
**Damon**, Tuesday, July 12, 2011 at 7:20pmbase * height = 9 * 9 cos 60 = 9*4.5

- sorry, too quick -
**Damon**, Tuesday, July 12, 2011 at 7:23pmheight = h

sin 60 = h/9

h = 9 sin 60

so

area = 81 sin 60 = 70.14

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