Exploring Rotations

Start the rotation animation. Write the new coordinates after a 90, 180, and 270 counterclockwise rotation.
What happens to the coordinates when the shape is rotated 90 degrees counterclockwise? 180? 270?
What would result in a (-x,-y) coordinate?
Reset the animation and show point F. Predict what the F' would be if rotated 90, 180, and 270 degrees counterclockwise.
Was your prediction right (press check point f)? Why or why not?
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資訊: Exploring Rotations