Congruent Chords: Quick Investigation

Interact with the applet below for a minute or two. [br][br]If [b]two chords of a circle are congruent[/b], what can we conclude about the [b][color=#980000]arcs[/color][/b] these chords determine (i.e. "cut off")?
Quick Demo: 0:00 sec - 0:58 sec (BGM: Andy Hunter)

Information: Congruent Chords: Quick Investigation