document.write( "Question 754209: In trapezium PQRS, PQ is parallel to RS. If Angle P=120 degrees, find the measure of Angle S. \n" ); document.write( "
Algebra.Com's Answer #458918 by rothauserc(4718)\"\" \"About 
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In trapezium PQRS, PQ is parallel to RS. If Angle P=120 degrees, find the measure of Angle S.\r
\n" ); document.write( "\n" ); document.write( "I assume you are British since the British trapezium is USA's Trapazoid and the USA Trapezium has no parallel sides.\r
\n" ); document.write( "\n" ); document.write( "Now since PQ is parallel to RS, PS and QR are traversals and Angle P + Angle S equals 180 degrees so Angle S is 60 degrees\r
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