# G.GCI.2 Angle Formed by Chord & Tangent (I)

- Author:
- Dan Dale, Tim Brzezinski

In the circle in the applet below, the

**pink angle**is said to be an**angle formed by a chord and a tangent**. Interact with this applet for a few minutes. As you do, be sure to change the locations of the BIG POINTS each time*before*re-sliding the slider! How does the angle formed by a chord and tangent relates to the central angle with the same arc?