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tool2
Author:
陳禹妗
GeoGebra
New Resources
判斷球體
三位數除以一位數（一）
兩組對邊相等的四邊形
三位數除以一位數（二）
近似值：有效數字
Discover Resources
Tangents from an External Point
柱體高度與體積
Classifying Quadrilaterals
N邊形滾動的副本
Copy of 「相似三角形」任务2
Discover Topics
Equilateral Triangles
Congruence
Orthocenter
Differential Calculus
Piecewise Functions