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Relationships between chords and their distances from centre
作者:
Healey Lee
Objective: To investigate the angle between a chord and the line joining the centre of the circle and the mid-point of the chord.
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活动三:应用性质
盈利與虧蝕
第八周作业1
双心四边形
第八周作业3
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E-X 电势-X
三角形外心的軌跡
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