document.write( "Question 1019491: What is the length of the diagonal of the largest cube that can be cut from a right circular cylinder of radius r and height r ? \n" ); document.write( "
Algebra.Com's Answer #636212 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Let's first solve for the largest square that can be cut from a circle of radius r.
\n" ); document.write( "The diameter of the circle becomes the diagonal of the square so you can solve for the side of the square since the diagonal is (using the Pythagorean theorem),
\n" ); document.write( "\"D%5Bs%5D%5E2=s%5E2%2Bs%5E2\"
\n" ); document.write( "\"D%5Bs%5D%5E2=2s%5E2\"
\n" ); document.write( "\"D%5Bs%5D=sqrt%282%29%2As\"
\n" ); document.write( "\"2r=sqrt%282%29%2As\"
\n" ); document.write( "\"s=%282r%29%2Fsqrt%282%29\"
\n" ); document.write( "\"s%5E2=%284r%5E2%29%2F2=2r%5E2\"
\n" ); document.write( "So to make a cube, use that same distance s.
\n" ); document.write( "So a diagonal for a cube of side s would be,
\n" ); document.write( "\"D%5Bc%5D=sqrt%28s%5E2%2Bs%5E2%2Bs%5E2%29\"
\n" ); document.write( "\"D%5Bc%5D=sqrt%283%29%2As\"
\n" ); document.write( "\"D%5Bc%5D=sqrt%283%29%28%282r%29%2Fsqrt%282%29%29\"
\n" ); document.write( "\"D%5Bc%5D=sqrt%286%29%2Ar\"
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