document.write( "Question 428550: You are 90 ft from a tree. The angle of elevation from your eyes, which are 5 ft off the ground, to the top of the tree is 70 degrees. to the nearest foot, how tall is the tree? \n" ); document.write( "

Algebra.Com's Answer #297853 by josmiceli(19441) $\"\"$ $\"About$

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Call the height of the tree $\"+h+\"$
\n" ); document.write( "You have a right triangle
\n" ); document.write( "The base is 90 ft
\n" ); document.write( "The height is $\"+h+-+5+\"$
\n" ); document.write( " $\"+tan%2870%29+=+%28h-5%29%2F90+\"$
\n" ); document.write( " $\"+2.747+=+%28h-5%29%2F90+\"$
\n" ); document.write( " $\"+h+-+5+=+90%2A2.747+\"$
\n" ); document.write( " $\"+h+=+5+%2B+247.27+\"$
\n" ); document.write( " $\"+h+=+252.3+\"$
\n" ); document.write( "The tree is 252 ft high \n" ); document.write( "

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