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Tangents from an External Point
Author:
Y.C.Lee
,
aamtinc
GeoGebra
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【案例】圆柱体内放置一个大球六个小球
錐體建築師
四邊形的特性
兩位數除以一位數（二）
畫出對稱圖形
Discover Resources
test2fhms
MathMedia150206
旋轉縮小的正方形
Triangle
基础知识
Discover Topics
Indefinite Integral
Step Functions
Planes
Addition
Square