Why earth is round?
Why earth not shaped like a triangle or a square ?
Did you know?
In the past, people imagining earth in the various forms .
Some people think that the earth was flat, square, round, like the ceiling, up high as a mountain.
Until one day a Greek philosopher who lived 500 years BC, named Pythagoras said that "The earth is round".
Some people did not believe his words. However Pythagoras could not prove that the earth is round.
Then why the earth is round? why the earth is not a triangular or square? Okay, lets check. .