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April 1, 2015

April 1, 2015

Posted by **jen** on Tuesday, August 23, 2011 at 5:41am.

- trigonometry - more info needed -
**drwls**, Tuesday, August 23, 2011 at 5:53amFrom where is the angle of elevation measured? You need to provide at least one length in order to compute another length.

I assume "button" means "bottom"

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