1.
Name an internal common tangent.
2. Name all chords.
3. Name an external common tangent.
![1 Name an internal common tangent 2 Name all chords 3 Name an external common tangent class=](https://us-static.z-dn.net/files/d0d/40f07eaeed9d9d5be479f71ad9094ade.png)