A cone does not have any parallel lines
Suppose the radius of the sphere is R. The base of the cone is the same as the base of the hemisphere so the radius of the base of the cone is also R. The apex of the cone is on the surface of the hemisphere above the centre of the base. That is, it is at the "North pole" position. So the height of the cone is also the radius of the sphere = R. So the ratio is 1.
A cone.A cone.A cone.A cone.
a hexagonal prism has 0 curved surfaces
108.4 square feet
a cone has 1 curvedsurface.
A cone has either one or two surfaces and either one or no edges.
A cone has one curved surface.
one
It has one.
1
1
A cone has two surfaces, one vertex and no edges.
1 edge and 2 surfaces
A cone has two surfaces.
The flat and the curved surfaces. In ice cream cone terms the ice cream and the cone are the two surfaces. Even if you eat the ice cream and the cone gets empty there are 2 surfaces, the inside and the outside curved surfaces.
ther is 20 surfaces on a cone because the is 1 on it sharp part * * * * * In fact, one flat surface (and one curved one).