National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Area of a Cone
This question and answer site is about finding the area of a cone when the height and the angle at the convergence point are given. The site goes on to explain how a cone relates to a circle.
Analyze Math
Analyze Math: Cone Problems
The geometry tutorial explores problems related to the surface area and volume of a cone. The activity has several examples with detailed solutions.
Oswego City School District
Regents Exam Prep Center: Cones
What is a cone? Find a definition, example images, and formulas for determining volume and surface area.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Area, Volume of a Cone
This question and answer site gives the formulas for area and volume of a cone.