document.write( "Question 1199540: 3) To find the height of a tower, a surveyor positions a measurement device that is 2 m tall at a spot 24 m from the base of the tower. She measures the angle from the top of the measurement device to the top tower to be 45°. What is the height of the tower? Show your work. \n" ); document.write( "
Algebra.Com's Answer #833469 by math_tutor2020(3817)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Diagram: \n" ); document.write( " ![]() \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Segments: \n" ); document.write( "AB = CD = 24 meters \n" ); document.write( "AD = BC = 2 meters \n" ); document.write( "CE = h = unknown (in meters)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Angle: \n" ); document.write( "Angle CDE = 45 degrees\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Triangle CDE is a right triangle. \n" ); document.write( "Furthermore, it is a 45-45-90 triangle which makes it isosceles. \n" ); document.write( "The two legs CD and CE are congruent. Both are 24 meters long. \n" ); document.write( "Therefore, h = 24.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Alternatively, you can use the tangent function to go from \n" ); document.write( "tan(45) = h/24 \n" ); document.write( "to \n" ); document.write( "h = 24\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "tan(45) = 1 when in degree mode.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The total height of the tower is: BC+CE = 2+24 = 26 meters\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Side note: 26 meters = 85.3018 feet approximately. \n" ); document.write( " \n" ); document.write( " |