Rotation
"Rotation" means turning around a center:
The distance from the center to any point on the shape stays the same.
Every point makes a circle around the center:
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Here a triangle is rotated around the point marked with a "+" |
Try It Yourself
Here you can drag the pin and try different shapes:
And here you can choose an angle and see how to rotate different shapes point-by-point. Try and follow what happens each time: