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Angle Formed by 2 Chords (I)

In the applet below, the gray angle is said to be an angle formed by 2 chords of a circle. This applet accompanies the Angle Formed by 2 Chords 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!

Slide the vertical slider (to the right) slowly. Carefully observe what happens.

Quick (Silent) Demo