document.write( "Question 1129921: Use the Law of Cosines to solve for the missing angle of the oblique triangle. Round to the nearest tenth. \r \n" );
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document.write( "a = 11, b = 21, c = 25;\r \n" );
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document.write( "find angle A. \r \n" );
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document.write( "A =______ °\r \n" );
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document.write( "Thanks in advance \n" );
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