The real shape of the Earth is an oblate spheroid, which means it is mostly spherical but slightly flattened at the poles and bulging at the equator. This shape arises due to the Earth's rotation, which causes a centrifugal force that pushes material away from the axis of rotation, resulting in the equatorial bulge and polar flattening.
While the Earth's shape can be described as an oblate spheroid, it is important to note that it is not a perfect shape. Irregularities in the Earth's surface, such as mountains, ocean trenches, and other geological features, contribute to local variations in the planet's shape. However, these irregularities are relatively small compared to the overall scale of the Earth.
It is worth mentioning that there are various models and visual representations of the Earth, depending on the purpose and level of detail required. For most everyday purposes, the Earth is commonly depicted as a sphere or a globe, which is a simplification of its actual shape. However, in scientific and geodetic measurements, the oblate spheroid model is used to account for the Earth's true shape.