Type your responses the prompts 1-4. Then complete the exercise below the applet.[br][br]1. What theorem is being demonstrated in the applet?[br]2. State the theorem.[br]3. What type of transformation is being demonstrated in the applet? And what information do you need to include to precisely describe the transformation?

A. Draw a diagram representing the transformation above. Label any objects you will need to refer to in a precise description of the rotation.[br]B. Write a proof of the vertical angles theorem. Refer to your diagram in the proof, and give precise definitions of any geometry vocabulary terms you use.