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GGB8
Author:
王博賢
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
sanjiaohanshu
算柱 (兩位數)
第八周作业
四邉形 (四年級) 教師版
Discover Resources
遞迴數列的星星
線段上分點軌跡(橢圓)
deductive geometry
立體三角測量(例七&八)
可翻轉的七巧板
滾動圓周來發現圓周長 的複本
Discover Topics
Symmetry
Translation
Quadrilaterals
Secant Line or Secant
Arithmetic Operations