EASY THEOREM

A theorem is illustrated in the simulation below
A circle is drawn with two angles marked.[br]The central angle CAD and angle at the circumference angle CED[br]Click the play button and Observe it carefully. [br]You can move the points in the circle.[br]Also you can increase or decrease the size of the circle by clicking on the Radius Changer point and zooming it in and out.[br][br][br]
Based on your observation try to answer this question
What is the relationship between <CAD and <CED
From the above simulation you find that the central angle is double the angle at the circumference
This illustrates the Theorem
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Information: EASY THEOREM