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December 22, 2014

December 22, 2014

Posted by **sanam** on Sunday, October 2, 2011 at 4:44am.

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The angle of elevation to the top of a very tall Building is found to be 7° from the ground at a distance of 1 mi from the base of the building. Using this information, find the height of the building.

- trig -
**drwls**, Sunday, October 2, 2011 at 7:19amDraw yourself a picture

Let building height = y

Distance from observer to base = x

= 1 mile = 5280 feet

y/x = tan(7deg) = 0.12278

y = 648.3 feet

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