Exploring RoTations (Turn)
The following activity demonstrates a rotation of a figure around the origin (0, 0). Experiment by moving the red point clockwise and counterclockwise to change the angle of rotation, and then answer the questions below.
Is the image congruent to the preimage?
When the angle of rotation is 90 degrees (clockwise or counterclockwise), how far away is the image from the preimage?
Change the angle of rotation to 180 degrees (clockwise or counterclockwise they are the same), now what do you notice about the image compared to the preimage?
What do you notice about the coordinates of the preimage compared to the image when the angle of rotation is 180 degrees?
Fill in the Blank: A 90 degree clockwise rotation is the same as a _________ degree counterclockwise rotation.