



 
Hi Fiona, Is there something left out of this problem? The rise in water level depends on the radius of the cylinder. The water level in a cylinder with a large radius will rise less than the water level in a cylinder with a small radius. On the other hand it might be a trick problem. If the cylinder is filled then putting a sphere into it will spill some water out but the level won't rise. Penny  


Math Central is supported by the University of Regina and the Imperial Oil Foundation. 