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
\n" ); document.write( "\n" ); document.write( "A. 20◦ B. 80◦ C. 100◦ D. 160◦ E. None of these.
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Algebra.Com's Answer #207750 by mestrydilip(13)\"\" \"About 
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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
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