What is the shape of the Earth?

Answer

The earth is often thought of as spherical, but it is closer to being an oblate spheroid. Its like a sphere flattened along the axis from pole to pole such that there is a bulge around the equator. The bulge results from the rotation of the Earth that causes the diameter at the equator to be 43 km larger than the pole-to-pole diameter.
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1 Additional Answer
In general terms when we talk about the Earth, we describe it as round, but that's not quite true. The Earth is an oblate spheroid, meaning it is sort of flattened out at the north and south poles and bulges a bit at the equator.
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