Imagine that you are on a beach and there will be a boat coming, if the Earth is flat, you should see the whole boat, but if it a sphere, you should only see the sail first. If you are unsure, try this idea.
false
it is a sphere not a cirlce.
Answer,The surface area of earth is 510072000 Sq.km.And the formula of earth is,the earth is sphere.: The area of earth = Area of sphere" " = 4*pi*r2= 4*22/7*4057390.9= 510072000
The troposphere, I do believe.
Sphere
sphere
A solid bounded by the set of all points at a given distance from a specific point is called a sphere. The center of the sphere is the given point, and the radius is the specified distance. All points on the surface of the sphere are equidistant from the center, creating a three-dimensional shape.
It is the set of all points [from some fixed point] at a distance of 1 unit, where the points on the surface of the sphere are included in the set.
A globular sphere has all points at the same distance from an interiocenter point.
A sphere.
A spatial figure where all points are the same distance from the center is called a sphere. In a sphere, every point on its surface is equidistant from the center point, which defines its radius. This property gives the sphere its perfect symmetry and uniformity in all directions.
You can't. It is impossible to have five equidistant points on a sphere, with the exception of trivial cases (i.e. where the radius is 0 or when one or more points are equal).
Sphere?
A Sphere.
The set of all points in space that are the same distance from a given point is called a sphere.
A circle, rotated about any diameter, will generate a sphere with the same radius. A circle is the locus of all points in 2-dimensional space that are equidistant from a fixed point. A sphere is the locus of all points in 3-dimensional space that are equidistant from a fixed point.
A circle, sphere or hyper-sphere - depending on the dimensionality of the space.