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折扣 例5
Author:
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
柱體建築師
兩位數除以一位數（二）
三位數除以一位數（一）
画直线等分三角形的面积
兩位數除以一位數（一）
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Homework5
Generalized Pythagorean Theorem
十分逼近法及根號概念
藝術之美 (1)
正四面体的切接球
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Circle
Symmetry
Sequences and Series
Parallelogram
Hyperbola