Yes, yes. It was mistake.90 degrees is one quarter of 360 degrees. There are four sides on a square. Rotate a square 90 degrees about its center and it looks the same as before.
Rotate a square standing on its edge 45 degrees about its center, and then its standing on a corner.
Yes, yes. It was mistake.90 degrees is one quarter of 360 degrees. There are four sides on a square. Rotate a square 90 degrees about its center and it looks the same as before.
Rotate a square standing on its edge 45 degrees about its center, and then its standing on a corner.
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