\r\n" );
document.write( "Sorry, that's not enough information.\r\n" );
document.write( "\r\n" );
document.write( "You must also know the ratio of the heights of the two cones.\r\n" );
document.write( "Just knowing the ratio of the radii is not enough. \r\n" );
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document.write( "The problem could be done if you knew the two cones had the\r\n" );
document.write( "same shape, but you aren't told that.\r\n" );
document.write( "\r\n" );
document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "Look at the two cones on the left. The radii (in red) of those two cones are \r\n" );
document.write( "in the ratio 5:7.\r\n" );
document.write( "\r\n" );
document.write( "Look at the two cones on the right. The radii of those two cones are \r\n" );
document.write( "ALSO in the ratio 5:7.\r\n" );
document.write( "\r\n" );
document.write( "It should now be obvious to you that the ratios of the surface areas\r\n" );
document.write( "and volumes of the two cones on the left are quite different from the\r\n" );
document.write( "ratios of the surface areas and volumes of the two cones on the right.\r\n" );
document.write( "Some cones are tall and skinny, some are short and fat, some are short\r\n" );
document.write( "and skinny, and some are tall and fat.\r\n" );
document.write( "\r\n" );
document.write( "If you were only given information about their radii and nothing about\r\n" );
document.write( "their heights or shapes, then be sure to point this out to your teacher,\r\n" );
document.write( "for that is NOT enough information to answer the questions. \r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" );
document.write( "![\"\"](\"/images/stars/stars-13.gif\")
