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平行四边形面积等底等高探究
Author:
何宏国
GeoGebra
New Resources
第三周作业效果演示
盈利與虧蝕
百分數及其應用
第八周作业1
第八周作业2
Discover Resources
類正五邊形摺法
捷徑問題
梯形的面積
移項法則
P3 3S1 製作平行四邊形 / Construct Parallelograms
Discover Topics
Upper and Lower Sum or Riemann Sum
Perimeter
Circumcircle or Circumscribed Circle
Planes
Reflection