A cone has only one vertex (the apex).
None. A right cone has no vertical lines. And what is a cone if it is not three dimensional?
we get a triangle
A cone has an infinite number of lines that can be drawn perpendicular to its surface. Specifically, any line drawn from the apex of the cone to a point on the circular base can be considered perpendicular to the radius at that point. Additionally, if you consider the vertical axis of the cone, any horizontal plane intersecting the cone's surface can also have multiple perpendicular lines.
The volume is 83.776 m3
A cone has two faces.
None. A right cone has no vertical lines. And what is a cone if it is not three dimensional?
The vertical cross section of a right vertical cone is a triangle if that cross section is taken from the vertex. Any other vertical cross section will reveal a hyperbola (with endpoints on the base of the cone). A link can be found below.
A cone has two faces and one edge. The question does not specify vertical what so it is not possible to answer that part of the question.
4
we get a triangle
V = 5,730,000 cm3
The volume is 83.776 m3
The volume is 1,900 units3
Cone
Two
A cone has no corners.
A cone has two faces.