document.write( "Question 1192097: Two sides of a parallelogram measure 68cm and 83cm. Its smaller diagonal has a measure of 42cm. Find the largest interior angle of the parallelogram​. \n" ); document.write( "
Algebra.Com's Answer #823999 by ikleyn(52803)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "\r\n" ); document.write( "Use the cosine law.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Find smaller interior angle \"a\" \r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 42^2 = 68^2 + 83^2 - 2*68*83*cos(a)\r\n" ); document.write( "\r\n" ); document.write( " cos(a) =\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |