document.write( "Question 457297: In a quadrilateral PQRS, the angles P, Q and R are in the ratio 1:4:8 and their sum is 273 degrees. Find:
\n" ); document.write( "i) Angle S,
\n" ); document.write( "ii) Angle R.
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Algebra.Com's Answer #313782 by poliphob3.14(115)\"\" \"About 
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Let angle P = x degree, then angle Q=4x degree, and angle R=8x degree.
\n" ); document.write( "Since the sum of these three interior angles is 273 degree we write the equation:\r
\n" ); document.write( "\n" ); document.write( "\"x%2B4x%2B8x=273\"solving this equation we get x=21 degree\r
\n" ); document.write( "\n" ); document.write( "We know that the sum of interior angles of a quadrilateral is 360 degree, then
\n" ); document.write( "the angle S=360-273=87 degree.\r
\n" ); document.write( "\n" ); document.write( "Answer:The measure of angle S=87 degree , and the angle R=8*21=168 degree.
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