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# Describing Rotations

## Describing Rotations 1.14 - Solution

To find the angle of rotation, we will start by selecting two arbitrary corresponding vertices on the preimage and image. Let's call them $A$ and $A'.$

Next, we will draw $\overrightarrow{CA}$ and $\overrightarrow{CA'}.$

Finally, we will measure the angle between these two rays.

We see above that the measure of the angle is $180^\circ.$

Therefore, the angle of rotation is $180^\circ.$