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平行线视觉差（源他人）
Author:
向霖 蔡
GeoGebra
New Resources
國旗 (作圖步驟直接餵給 Claude)
伊朗國旗 (Codex╱2026.10.07)
找出對稱軸
長方體平面投影 (Codex版)
sanjiaohanshu
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Quiz on Angles associated with Parallel Lines 平行線上的角：測驗
廣義角的代換(90度加減角度)
單一物件分段移動
完整地球儀
函数作图工具的副本
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Expected Value
Right Triangles
Square
Volume
Coordinates