1. DO YOU KNOW WHERE THE CONE COME FROM?
http://www.asset.asu.edu/new/mathactive/lessons/63/interface-cone.swf
2. surface area of a cone
http://www.asset.asu.edu/new/mathactive/lessons/260/look.swf
3. Find out the relationship between the cylinder and the cone
4. Volume of a cone
htp://www.asset.asu.edu/new/mathactive/lessons/261/look.swft