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GeoGebra
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GeoGebra
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2015
Author:
Alvinwo
GeoGebra
New Resources
三位數除以一位數（一）
球體建築師
画直线等分三角形的面积
拼砌四邊形
兩位數除以一位數（二）
Discover Resources
高中二年級平面向量
費氏螺旋 (試算表)
Locus of mid-point of a variable chord of a circle.
三垂線定理
正六邊形串珠
Discover Topics
Kite
Conditional Probability
Fractal Geometry
Trigonometric Functions
Circumcircle or Circumscribed Circle