How to know the cone

A cone is a geometric figure with two definitions. Analytic geometry definition: A spatial geometry consisting of a conical surface and a plane intersecting it (satisfying that the intersection line is a circle) is called a cone. Definition of solid geometry: The geometry formed by taking the straight line where the right side of a right triangle is located as the rotation axis and the other two sides rotating 360 degrees is called a cone. The axis of rotation is called the axis of a cone. The surface formed by rotating a surface perpendicular to the axis is called the bottom surface of the cone. A surface that is rotated by an edge that is not perpendicular to the axis is called the side of a cone. No matter where you rotate, the side that is not perpendicular to the axis is called the generatrix of the cone. (An edge refers to two rotating edges of a right triangle)

Chinese name

circular cone

Foreign name

circular cone

Volume formula

Bottom area× height×1/3v cone = 1/3sh.

Surface area formula

Lateral area+bottom area

classify

mathematics

belong to

geometric figure