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8.3 作正五边形
Author:
郑凯耀
,
user750
Move the control (red cross) from left to right to see how a regular pentagon inscribed inside a circle can be constructed
GeoGebra
Try to explain why this method work.
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活动三:应用性质
椭圆内切圆链
中华人民共和国国旗
百分數及其應用
镂空正方体案例对比
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兩圓關係與公切線
正四角柱
同心圓和線段
螢橋國中 陳柏丞
鉛筆畫圓
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Terms
Orthocenter
Random Variables
Ellipse
Linear Equations