Move point C and observe. Concentrate on the measure of segments CD and segments CE.[br]You may write down the measure of the tangent segment following the table:[br][img]data:image/png;base64,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[/img][br]What conclusion maybe formed?[br]

Tangent segment formed by two tangent lines/segments that intersect at a point outside the circle are congruent.