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轨迹20
Author:
万超杰
GeoGebra
New Resources
三位數除以一位數(一)
兩組對邊相等的四邊形
球體建築師
四邉形 (四年級) 教師版
兩位數除以一位數(二)
Discover Resources
量度活動所用的時間 (時、分)
折扣 例1
動圓的圓心軌跡為橢圓
判斷三角形
工作天時
Discover Topics
Rhombus
Pythagoras or Pythagorean Theorem
General Quadrilateral
Trapezoid
Tangent Line or Tangent