4.3 Exploring Rotations on the Coordinate Plane
Rotations
Using the applet above, rotate the triangle 90 degrees counter clockwise (or 270 degrees clockwise). What are the coordinates of preimage point A? What are the coordinates of image point A'?
What is the "rule" for a 90 degrees CCW rotation?
Rotations
Now, use the applet above to rotate the triangle 180 degrees. What are the coordinates of preimage point A? What are the coordinates of image point A'?
What is the "rule" for a 180 degree rotation?
Rotations
Lastly, use the applet above to rotate the triangle 270 degrees counterclockwise (or 90 degrees clockwise). What are the coordinates of preimage point A? What are the coordinates of image point A'?
What is the "rule" for a 270 degree CCW rotation?