Question

What is the exact model of the earth? ​

Answer 1

Answer:

The simplest model for the shape of the entire Earth is a sphere.The Earth's radius is the distance from Earth's center to its surface, about 6,371 kilometers (3,959 mi). ). While "radius" normally is a characteristic of perfect spheres, the Earth deviates from spherical by only a third of a percent, sufficiently close to treat it as a sphere in many contexts and justifying the term "the radius of the Earth.

Answer 2

Answer:

The oblate spheroid, or ellipsoid, is an ellipsoid of revolution obtained by rotating an ellipse about it's shorter axis. It is the regular geometric shape that most nearly approximates the shape of the earth. A spheroid describing the figure of the earth or the other celestial body called a reference ellipsoid.

Explanation:

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