First question I have is about the net of a right circular cone.
2.
For example : a right circular cone.
3.
Consider a right circular cone with semi-vertical angle equal to " ? ".
4.
Thus, the total surface area of a right circular cone can be expressed as each of the following:
5.
Wrap the plane to form a right circular cone so that the conic becomes a curve in three-dimensional space.
6.
The event took place on a large, rotating platform which resembled a right circular cone with its outside edge and apex flattened.
7.
Among conical hats, the " n�n l?" of the Vietnamese people forms a perfect right circular cone which tapers smoothly from the base to the apex.
8.
Here " e " is the Mamikon A . Mnatsakanian in their study of curves drawn on the surfaces of right circular cones introduced a new class of curves which they called generalized conics.
9.
The aperture of a right circular cone is the maximum angle between two generatrix lines; if the generatrix makes an angle " ? " to the axis, the aperture is 2 " ? ".
10.
A manual of geometry for non-mathematicians, like land surveyors and other government officials, which presents a set of rules for calculating the volume and surface area of solids ( mainly rectangular parallelepipeds, right circular cones ).