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What is the actual shape of Earth?

2022-09-01 23:00:03
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What is the actual shape of Earth?

The oblate spheroid, or oblate ellipsoid, is an ellipsoid of revolution obtained by rotating an ellipse about its shorter axis. It is the regular geometric shape that most nearly approximates the shape of the Earth.

What is the shape of Earth answer?

The earth is flattened at the poles and bulged at the center. Geodesy represents the shape of the earth with an oblate spheroid.

What shape is the Earth Why?

Even though our planet is a sphere, it is not a perfect sphere. Because of the force caused when Earth rotates, the North and South Poles are slightly flat. Earth's rotation, wobbly motion and other forces are making the planet change shape very slowly, but it is still round.

Is the Earth a sphere or a geoid?

First and foremost, the Earth itself isn't a sphere. It is closer to an ellipsoid, being flattened at the poles by the centrifugal force of its own rotation. But the planet isn't an ellipsoid either, because of topography. Mountains and valleys are asymmetrical distributions of mass.

Is Earth round or oval?

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. However, even an ellipsoid does not adequately describe the Earth's unique and ever-changing shape.

Why is Earth round?

A planet is round because of gravity. A planet's gravity pulls equally from all sides. Gravity pulls from the center to the edges like the spokes of a bicycle wheel. This makes the overall shape of a planet a sphere, which is a three-dimensional circle.

What is the shape and size of the Earth?

Our planet's shape, caused by the flattening at the poles, is called an oblate spheroid. Those numbers make Earth just slightly bigger than Venus, whose equatorial radius is about 3,761 miles (6,052 km).

Is the Earth an example of a perfect circle?

The Earth isn't a perfect sphere, however. It is an oblate spheroid, meaning it stretches out a little around the Equator in a form called an equatorial bulge. The Equator is around 40,075 kilometers (24,901 miles) in circumference.