document.write( "Question 647385: One side of a rectangle is 6 feet long and the diagonal is 14 feet long. Find the length of the other side of the rectangle. \n" ); document.write( "
Algebra.Com's Answer #406167 by Sarpi(32)![]() ![]() You can put this solution on YOUR website! A diagonal line divides the rectangle in two shape of \"right-angle triangle\" \n" ); document.write( "So the diagonal = 'hypotenuse' of the right-angle triangle = 14ft \n" ); document.write( "and the width = the 'opposite' of the right-angle triangle = 6ft (that is taking into account down part of the rectangle after dividing it)\r \n" ); document.write( "\n" ); document.write( "Now, the question becomes a problem of trigonometry - 'square of hypotenuse' is equal to 'sum square of both the opposite and the adjacent'; \n" ); document.write( "\n" ); document.write( "=> H = 14ft, O = 6ft and we look for A \n" ); document.write( "=> \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Then by taking square root of both sides: \n" ); document.write( "\n" ); document.write( "=> \n" ); document.write( " \n" ); document.write( "Hence, A = 12.649, so approximately the length of the other side is 12.6ft \n" ); document.write( " \n" ); document.write( " |