document.write( "Question 1083795: theo looking up at a building in the distance. the angle of elevation to the top of the building is 20. he walks 200 feet closer and re-measures the angle to be 24. how tall is the building? answer \n" ); document.write( "

Algebra.Com's Answer #697843 by ikleyn(52915) $\"\"$ $\"About$

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document.write( "1.  Make a sketch.\r\n" );
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document.write( "2.  Recall what the tangent is (I mean the Trigonometry function tan).\r\n" );
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document.write( "3.  Let H be the height of the building.\r\n" );
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document.write( "    Then the longest distance from Theo to the building was .\r\n" );
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document.write( "    Next, the closest distance from Theo to the building was .\r\n" );
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document.write( "    Your equation is  = 200,   or\r\n" );
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document.write( "     = 200.\r\n" );
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document.write( "    Solve it for H:\r\n" );
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document.write( "    H = .\r\n" );
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document.write( "4.  You do the calculations.\r\n" );
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