document.write( "Question 1143886: A side and the altitude of a rhombus measure 120m and 90m respectively.
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Algebra.Com's Answer #764820 by ikleyn(52788)\"\" \"About 
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document.write( "Let  \" a \"  be the smaller interior angle of the rhombus (exactly the value under the problem's question).\r\n" );
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document.write( "Then  sin(a) = \"90%2F120\" = \"3%2F4\".\r\n" );
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document.write( "Hence,  a = arcsin(3/4).      ANSWER\r\n" );
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