The line that passes through the middle of a sphere or planet is called its diameter. The diameter is the longest distance across the sphere, passing through its center, and it is twice the length of the radius, which is the distance from the center to the surface.
No, a sphere is not equivalent by distortion to a torus. A sphere is a simple closed surface with no holes, while a torus has a hole in the middle. In topological terms, they belong to different categories, as a sphere has a genus of 0 and a torus has a genus of 1. Therefore, they cannot be transformed into one another through continuous deformation (homeomorphism).
the distance across the middle is the radius and whole distance across it is the diameter
No. The circumference is the distance around a circle or equaltor wheras the radius is the distance from the centre of a sphere (the centre of the earch if you will) to the surface. the diameter is twice the distance of the radius and is the distance from the surface of a sphere, through the middle point across to the other surface.
The cross sections of a sphere can be circular or elliptical, depending on how the plane intersects the sphere. When a plane cuts through the center of the sphere, the cross section is a circle with the same radius as the sphere. If the plane intersects the sphere at an angle or does not pass through the center, the cross section will still be a circle, but its radius will be smaller than that of the sphere. Additionally, if the plane is tangent to the sphere, the cross section reduces to a single point.
The lower part of the mantle between the asthenosphere and the outer core.
No i am sorry to say mars is not an exact sphere. the rocks and boulders and everything on the planet is not an exact sphere
A straight line passing from side to side going through the middle of a circle or sphere is a diameter.
the middle sphere is between the asthenosphere and the outer core!
Sphere
its a sphere
a sphere
It is the diameter of the circle or the sphere
That picture represents the planet Saturn. The sphere is the planet itself, while the ring symbolizes its iconic ring system that surrounds it.
Sphere, orb, planet.
biosphere
Planet?
Greek "sphaira" = ball.Latin "sphaera" and then "sphera" Old French "espere" Middle English "sphere".