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GeoGebraGeoGebra Classroom

Are Rotations Isometries?

Triangle Rotation Activity Use the slider to move the image. Can you place it back on the pre-image so that it is exactly the same size and shape? Try changing the shape of the triangle by moving any of the points. You may also move the point of rotation (M) by locating it anywhere on the grid. Does the image remain the same size and shape as the pre-image?