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Author:
chen mingchuan
GeoGebra
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直角坐標平面上的旋轉變換
幾何作圖題:切三圓(題目)
長方體平面投影 (Codex版)
sanjiaohanshu
三半圓間的相切圓(Codex╱2026.10.07)
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畢式定理 (05)
Copy of 方格紙上畫四邊形
巴拉拉能量2.0
李樂雯_尋找PI的活動
分數約分
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Scalene Triangles
Limits
Distributions
Correlation
Median Line