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拼出三角形的副本
Author:
彭雨欣
,
孟宝兴
拼出三角形
GeoGebra
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近似值：有效數字
算柱 (兩位數)
判斷球體
找出對稱軸
直角坐標平面上的旋轉變換
Discover Resources
推移（x 方向）
垂直線的斜率關係
doto属性研究
Measure of Dispersion
活动三：应用性质
Discover Topics
Geometry
Cone
Trapezoid
Prism
Ellipse