document.write( "Question 286363: The measures of two adjacent angles of a parallelogram are in the ratio 5:4. What is the measure of an obtuse angle of the parallelogram?\r
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document.write( "A. 20◦ B. 80◦ C. 100◦ D. 160◦ E. None of these. \n" );
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Algebra.Com's Answer #207750 by mestrydilip(13) You can put this solution on YOUR website! Let the common factor be x.\r \n" ); document.write( "\n" ); document.write( "5x + 4x = 180 (Adjacent angles of a parallelogram are supplementary )\r \n" ); document.write( "\n" ); document.write( "9x = 180\r \n" ); document.write( "\n" ); document.write( "x=20\r \n" ); document.write( "\n" ); document.write( "5x = 5*20=100\r \n" ); document.write( "\n" ); document.write( "Obtuse angle measure = 100.\r \n" ); document.write( "\n" ); document.write( "Hence answer is C \n" ); document.write( " |