# IM2.7 T3 Centers of Rotation 2

- Author:
- Lind, Jon

- Topic:
- Rotation

## Multiple points

Triangle A'B'C' below is a rotation of triangle ABC. Use what you learned in the last task to find the center of rotation. Leave any constructions visible to illustrate your method.

*Hint: Try to use circles in your constructions.*Describe how to find the center of rotation for figures made up of multiple points. Try to use the words **perpendicular bisectors, intersection, concentric circles, corresponding, image, pre-image, equidistant **in your description.