What method is typically used to lay out the pattern for a cone?

The radial line method is commonly employed to lay out the pattern for a cone. This technique involves drawing several radial lines that originate from the apex of the cone and extending to the circumference of the base. By using this method, the layout can accurately reflect the dimensions and angles necessary for the cone's slant height and base radius. The radial lines serve as guides for cutting and shaping the material, ensuring that the final product maintains the proper geometric proportions of the cone.

This method is particularly effective because it simplifies the transfer of the cone's three-dimensional geometry onto a two-dimensional surface, making it easier to visualize and fabricate. Its use can result in more precise patterns and improved accuracy during the fabrication process, which is essential in sheet metal work.