document.write( "Question 1072412: a rectangle box is 7cm wide, 7 cm tall, 8 cm long. What is the diameter of the smallest circular opening trough which the box will fit? \n" ); document.write( "
Algebra.Com's Answer #687331 by math_helper(2461)\"\" \"About 
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The diagonal length of the box (7cm x 7cm side) must fit into the diameter of the circular opening.\r
\n" ); document.write( "\n" ); document.write( "Let d=minimum diameter\r
\n" ); document.write( "\n" ); document.write( "\"+2r+=++d+=++sqrt%287%5E2+%2B+7%5E2%29+\"
\n" ); document.write( "\"++d+=+7%2Asqrt%282%29+\"
\n" ); document.write( "\"+d+=+9.9cm+\" (approx.)
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