...... And that, my liege. Is how we know the earth to be banana shaped........
Neither it's flat
I do not know unless I visit the moon and see from there
It isn't either one if you consider the mountains and valleys, but it is close enough to a sphere. The measure between opposite points on the equator is something like 0.3% further than the measure between the poles.
Neither. Its spherical.
ITS a flat 3d shaped sphere