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1981全国文5
Author:
常振虎
GeoGebra
New Resources
直角坐標平面上的旋轉變換
畫出對稱圖形
找出對稱軸
兩組對邊相等的四邊形
算柱 (兩位數)
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Classifying Quadrilaterals
內輪差...
四邊形的邊長與限制
展開圓面積 (講義版)的副本
序列（圆内弦）
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Terms
Linear Regression
Inequalities
Frequency Distribution
Constructions