The vertex of the cone would reach the very top of the sphere, so the height of the cone would be the same as the radius of the sphere. Therefore the ratio is 1:1, no calculation is necessary.
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.
Yes. Any triangle can be inscribed in a circle.
No but it has a circular edge
One circular edge.
Half of a sphere with a circular base is called a Hemisphere.
It has one circular edge.
None but it does have a circular rim or edge.
A cone or a hemisphere or circle
The circular orbit equation used to calculate the motion of objects in a circular path is called the centripetal force equation, which is F mv2/r.
It is a hemisphere.
hemisphere
a = (pi)r2