document.write( "Question 725219: How long should an escalator be if it is to make an angle of 38 degrees with the floor and carry people a vertical distance of 21 feet between floors? (Round your answer to the nearest whole number.)
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Algebra.Com's Answer #444026 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How long should an escalator be if it is to make an angle of 38 degrees with the floor and carry people a vertical distance of 21 feet between floors? (Round your answer to the nearest whole number.) \n" ); document.write( "------------------- \n" ); document.write( "Draw the picture. \n" ); document.write( "You have a triangle with base angles of 38 and 90. \n" ); document.write( "Let the side opposite the 38 degrees be 21. \n" ); document.write( "---- \n" ); document.write( "Solve for the hypotenuse: \n" ); document.write( "sin(38) = opp/hypotenuse \n" ); document.write( "hypo = 21/sin(38) \n" ); document.write( "hypo = 34.11 ft. \n" ); document.write( "============= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============== \n" ); document.write( " |