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GeoGebra지오지브라 클래스룸

Using Chords

Find the measure of arc CE.

Find the arc length of ECD.

Find the measure of CE.

Prove whether or not segment CB is the diameter of the circle.

Find the radius of the circle.

Real world

An archeologist finds part of a circular plate. What was the diameter of the plate to the nearest tenth of an inch? Justify your answer.