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平行四邊形面積的副本
Author:
xiaodandan
,
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
第八周作业
兩組對邊相等的四邊形
球体的体积推导（优化版）
找出對稱軸
拼砌四邊形
Discover Resources
底圖為圓，縱切面為正方形
Quiz on Projection of a Line Segment on a Plane 投影：測驗
平行四邊形和長方形的大小
任意三角形外心與外接圓
整數
Discover Topics
Similarity Transformation or Similarity
Expected Value
Median Value
Median Line
Ratios