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:
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document.write( "i) Angle S,
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document.write( "ii) Angle R. \n" );
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Algebra.Com's Answer #313782 by poliphob3.14(115)![]() ![]() ![]() You can put this solution on YOUR website! 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( " \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. \n" ); document.write( " |