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December 21, 2014

December 21, 2014

Posted by **Anonymous** on Thursday, June 3, 2010 at 12:01pm.

- math-geometry -
**shresth**, Thursday, December 4, 2014 at 3:04amlength oflighthouse=4om

angle of depression=20

TAN 20=0.363

put the value and get the answer

answer is approx 108.xx

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