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GeoGebraGeoGebra Classroom

Investigating Rotations

Author:
tmarley
Topic:
Rotation

Part A

Plot the points A', B', and C' after triangle ABC has been rotated 90 degrees counterclockwise about the origin. What happens to the coordinates when a figure is rotated 90 degrees counterclockwise?

Part B

Using the tools provided, rotate triangle ABC 180 degrees. Point D is the center of rotation. What are the important geometric properties of a rotation?