document.write( "Question 767166: A flagpole casts a shadow 25 feet long. \r
\n" ); document.write( "\n" ); document.write( "If the angle of elevation from the tip of the shadow to the top of the flagpole is 60° , find the height of the flagpole. \r
\n" ); document.write( "\n" ); document.write( "Give an exact number.
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Algebra.Com's Answer #467472 by fcabanski(1391)\"\" \"About 
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The flagpole, shadow, and a line from the far end (tip) of the shadow to the top of the flag form a 30-60-90 triangle. The side lengths of such a triangle are always in the same proportions.


\n" ); document.write( "Opposite 30 : x


\n" ); document.write( "Opposite 90: 2x


\n" ); document.write( "Opposite 60 : \"sqrt%283%29%2Ax\"


\n" ); document.write( "The shadow is opposite the 30 degree angle. We know the shadow is 25 feet long. x = 25 feet. That means the flag pole height, which is opposite the 60 degree angle, is \"sqrt%283%29%2A25\" feet long. \n" ); document.write( "

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