Question

write 2 ways by which we know about the shape of the Earth​

Answer 1

Answer:

anyone answer your question

Explanation:

circle and square

Answer 2

Answer:

Since the Earth is flattened at the poles and bulges at the Equator, geodesy represents the figure of the Earth as an oblate spheroid. The oblate spheroid, or oblate ellipsoid, is an ellipsoid of revolution obtained by rotating an ellipse about its shorter axis. The Earth is an irregularly shaped ellipsoid.

While the Earth appears to be round when viewed from the vantage point of space, it is actually closer to an ellipsoid..

size of the Earth is 6,371 km Earth/Radius

The amount of flattening depends on the density and the balance of gravitational force and centrifugal force. In other words, the Earth is a spheroid because it rotates. Gas giants like Jupiter and Saturn are flattened by rotation more than the Earth.