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勒洛四面体（拼接法）
Author:
孟宝兴
GeoGebra
New Resources
算柱 (兩位數)
三半圓間的相切圓(Codex╱2026.10.07)
小数 的副本
伊朗國旗 (Codex╱2026.10.07)
長方體平面投影 (Codex版)
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I love you
Translation, Reflection and Rotation
Ruler
比較3個分數大小
複數乘法的幾何意義
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Interest Calculation
Perimeter
Quadratic Functions
Cube
Triangles