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量角器
Author:
王詣丞
GeoGebra
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算柱 (兩位數)
直角坐標平面上的旋轉變換
兩組對邊相等的四邊形
找出對稱軸
拼砌四邊形
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在三角形兩個邊各取一點使得三線段等長(BK=KL=CL)
第1章知识结构框图
Copy of Quiz on Solving Quadratic Inequalities 解二次不等式：測驗
完全图
（三）观察物体
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Similar Triangles
Natural Numbers
Parallelogram
Mathematics
Linear Regression