Coordinates:
symmetries
Use your mouse to move the red point. (Right-click to clear the traced paths.)
Compare the
x-coordinates
of all the points.
Green point x coordinate =
Choose...
red point x coordinate
red point y coordinate
negative red point x coordinate
negative red point y coordinate
Orange point x coordinate =
Choose...
red point x coordinate
red point y coordinate
negative red point x coordinate
negative red point y coordinate
Blue point x coordinate =
Choose...
red point x coordinate
red point y coordinate
negative red point x coordinate
negative red point y coordinate