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平行四邊形
Author:
Yip Chi Wai
Topic:
Parallelogram
GeoGebra
New Resources
画直线等分三角形的面积
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（一）
兩組對邊相等的四邊形
畫出對稱圖形
Discover Resources
選擇合適的「中間人」
座標變換_數線
單一物件分段移動
弧長與圓周角成比例
轨迹最值问题
Discover Topics
Conic Sections
Histogram
Curve Sketching
Natural Numbers
Cone