Angle Formed by Chord & Tangent (I)

In the circle in the applet below, the pink angle is said to be an angle formed by a chord and a tangent. This applet accompanies the Angle Formed by a Chord & Tangent activity sheet you received at the beginning of class. Before answering the questions on this sheet, 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!

Quick Demo: 1:33 sec to END (BGM: Edward Shearmur)