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Radius and Chord Relationships

作者：Jason Berta, mtorres1, watson92982, mtpberg
主題：圓, 幾何

Radius and Chord Relationships in Circles

1.  Drag Point F until Angle CEB becomes a right angle. What do you notice? 2. Drag Point A or B to somewhere else. Then repeat step 1. What do you notice?

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