document.write( "Question 1018991: A cone of maximum size is carved out from a cube of edge 20 cm. find the surface area of solid \n" ); document.write( "
Algebra.Com's Answer #634968 by FrankM(1040)\"\" \"About 
You can put this solution on YOUR website!
The radius of the circular base is 10 cm. This gives a base area of \r
\n" ); document.write( "\n" ); document.write( "\"%28100pi%29\"\r
\n" ); document.write( "\n" ); document.write( "The height is 20cm for a slant height (triangle hypotenuse) of\r
\n" ); document.write( "\n" ); document.write( "\"10%28sqrt%285%29%29\"\r
\n" ); document.write( "\n" ); document.write( "Area of top section is \r
\n" ); document.write( "\n" ); document.write( "\"%28pi%29%28r%29%28slant%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%28pi%29%2810%29%2810%28sqrt%285%29%29%29\"\r
\n" ); document.write( "\n" ); document.write( "or \r
\n" ); document.write( "\n" ); document.write( "\"%28100%28sqrt%285%29%29%28pi%29%29\"\r
\n" ); document.write( "\n" ); document.write( "for a total \r
\n" ); document.write( "\n" ); document.write( "\"%28100%28sqrt%285%29%29%28pi%29%29\"+\"%28100pi%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "1016.64 sq cm
\n" ); document.write( "
\n" );