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一线三等角的相似模型
Author:
陈丽婷
GeoGebra
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算柱 (兩位數)
sanjiaohanshu
美國國旗 (Claude 版)
三半圓間的相切圓(Codex╱2026.10.07)
四邊形的特性
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平面直角坐标系
空間旋轉矩陣
GGB3
拼出三角形的副本
正餘弦函數的疊合
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Curve Sketching
Piecewise Functions
Trigonometry
Solids or 3D Shapes
Vectors 2D (Two-Dimensional)