Question

What is all of the rotation rules? (geometry)

Answer 1

These are the rules of rotation for geometry.
1) 90° clockwise rotation: (x,y) becomes (y,-x)

2) 90° counterclockwise rotation: (x,y) becomes (-y,x)

3) 180° clockwise and counterclockwise rotation: (x, y) becomes (-x,-y)

4) 270° clockwise rotation: (x,y) becomes (-y,x)

5) 270° counterclockwise rotation: (x,y) becomes (y,-x)

Explanation:

I hope this helps! I also added a picture to make this more clear.