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施重宇
GeoGebra
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四邊形的特性
中華民國國旗 (Codex╱2026.10.06)
AI 訓練教室
近似值：有效數字
畫出對稱圖形
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拿破侖定理(外拿破侖)證明二
全等三角形
周界-平移法(練習二)
半圓柱(可改底面圓半徑、柱高)
Triangle
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Cuboid
Line Segment
Hypothesis Testing
Real Numbers
Isosceles Triangles