document.write( "Question 194727: What is the length of a diagonal of a 10-cm cube? Show your work. (Do not use the cube-diagonal formula unless you show why it works.) \n" ); document.write( "
Algebra.Com's Answer #146173 by checkley77(12844)\"\" \"About 
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A 10 cm cube & it's diagonal forms a right triangle represented by:
\n" ); document.write( "10^2+10^2=c^2
\n" ); document.write( "100+100=c^2
\n" ); document.write( "200=c^2
\n" ); document.write( "c=sqrt200
\n" ); document.write( "c=14.14 is the length of the diagonal.
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