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ggb-fs-a2
Author:
康靖坤
a,b控制長方形大小; 橫的平分n份上色l份; 直的平分m份上色k份
GeoGebra
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平行線的判定
活动三:应用性质
斐波那契螺旋弧线(表格法-可动态调节)
龙形曲线-分形龙
正方形雪花图案
Discover Resources
geo123
Apollonius Problem gergonne 2
數學傳播39卷4期, 平面幾何公式思考
六年級
工具:DimensionArrows
Discover Topics
Tree Diagrams
Differential Equation
Geometric Transformations
Circumcircle or Circumscribed Circle
Arithmetic