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切線段等長
Author:
謝易達
可移動P點，檢查切線段是否等長
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
找出對稱軸
sanjiaohanshu
小数 的副本
四邉形 (四年級) 教師版
Discover Resources
T7 geobra
過圓內C點的弦中點軌跡
複合不平等
三角形的高
增加數據對平均數的影響
Discover Topics
Rhombus
Addition
Difference and Slope
Constructions
Parallelogram