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圖四的副本
Author:
LT14888061
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
柱體建築師
兩位數除以一位數（一）
画直线等分三角形的面积
判斷球體
第八周作业
Discover Resources
畢氏定理動態證明(劉徽)
P5三角形的面積
圓周的計算
橢圓1--四圓心近似法
学习计算器套件
Discover Topics
Kite
General Quadrilateral
Centroid or Barycenter
Ratios
Vectors