On a smooth level surface, and with no forces acting on it after the moment of release, it MUST.
The radius of a circle or sphere is a straight line from the centre to the edge.
a sphere
Diameter is the length of a straight line passing through the center of a circle or sphere and connecting two points on the circumference of the circle or the surface of the sphere. Circumference is the length of the closed curve of a circle.
A face.
The diameter of a circle or sphere is the length of a straight line that touches both sides and passes through the centre.
a cylinder
A sphere and a cylinder can roll straight.
It's the length of any straight line that's completely inside the sphere and passes through its center. It's the longest possible straight line that can be completely enclosed inside the sphere.
A straight line passing from side to side going through the middle of a circle or sphere is a diameter.
Diameter
It is the radius
Sphere ,because the sphere is roll if you put sphere in the table it can be roll. *_*
Well, honey, a cone can't roll in a straight line because of its shape. It's like asking a square to roll smoothly without wobbling. Physics just ain't gonna let that happen, sweetie. So, in short, no, a cone can't roll in a straight line.
If your question is " What is the shape of a sphere's tangent?" , then the answer is : a plane. A plane basically touches the sphere at only one point and hence , it should be a plane. It cannot be a straight line , as a straight line is a tangent for 2D objects,( ie.) a circle.
Yes providing that the line is wide enough and that the can is equally balanced.
The radius of a circle or sphere is a straight line from the centre to the edge.
If you mean "radius," it's a straight line from the center to the circumference of a circle or sphere.