document.write( "Question 971397: sighting the top of building, a surveyor measured the angle of elevation to be 45 degree the transit in 12 feet above the ground and 100 feet from the building. what is the buildings height?\r
\n" ); document.write( "\n" ); document.write( "a. 100 feet
\n" ); document.write( "b. 112 feet
\n" ); document.write( "c. 88 feet
\n" ); document.write( "d. 90 feet
\n" ); document.write( "

Algebra.Com's Answer #593922 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
tan(45) = h1 / 100, where h1 is height above the transit
\n" ); document.write( "h1 = 100 * tan(45)
\n" ); document.write( "h1 = 100
\n" ); document.write( "h(height of building) = 100 + 12 = 112
\n" ); document.write( "answer is b
\n" ); document.write( "
\n" ); document.write( "
\n" );