The document discusses rotations of triangles. It provides an example of rotating triangle ABC 180 degrees about the origin, with the new vertices being A'(-1,-1), B'(-2,-3), C'(-3,-2). It then asks the reader to graph triangle WXY with given vertices and find its line symmetries, and the vertices of its reflections over the x-axis and y-axis. It also provides an example of a figure with 120 degree rotational symmetry.

2. J8 Rotations

4. Find the vertices of the image of ∆ABC after a rotation of 180º about the origin.

7. 1. Copy the graph of ∆ABC in Example 1. Draw its image after a rotation of 90º about the origin. Name the coordinates of the vertices of the image.

9. Does this flower have rotational symmetry? If so what is the angle of rotation? Yes, the figure has rotational symmetry. The angle of rotation is 120 º