AN UNBIASED VIEW OF ONE UP CONES

The "foundation radius" of the circular cone would be the radius of its base; often this is simply known as the radius on the cone. The aperture of the proper round cone is the maximum angle concerning two generatrix lines; In the event the generatrix tends to make an angle θ to the axis, the aperture is 2θ. In optics, the angle θ is called the