Cone-shape geometry with mathematical creation method. As follows:Let a and b be any two straight lines contrasting the V angle is a straight line, and V is the surface sticky due to rotation around a straight linear b (by the angle between the straight lines a and b are fixed size) is called the cone round matches (right circular cone), as shown in Figure 1 in this particular study, we will only match round Cone and cone is called the straight shot that PIN on the so-called axis of a cone. V point called the vertexA straight line through the point b V angle with the axis of the cone. Also called cone generator A vertex V cone split into two sides, which are in different sides of the vertex. When the plane is perpendicular to the axis of the cone, the cone axis angle to make larger. The plane will cut one side of the cone is a cone cut called the ellipse. When the plane is parallel to the establishment of a single cone conical sides will cut the plane had cut off the southern cone is called a parabola.
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