document.write( "Question 996184: What is the length of the unknown side of the right triangle?\r \n" );
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document.write( "A right triangle with hypotenuse x and legs 21 and 20\r \n" );
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document.write( " 21 \n" );
document.write( " 29 \n" );
document.write( " 400 \n" );
document.write( " 441 \n" );
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