rotation at a fairground

"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:


rotation 2d   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:



6712, 6713, 6714, 6715, 839, 840, 2133, 2134, 3340, 3341