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trigonometry
Author:
jarypig1983
GeoGebra
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【案例】2018年全国1卷理科12题
算柱 (兩位數)
四邊形的特性
畫出對稱圖形
找出對稱軸
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大邊對大角
四角柱
Angle between Line and Plane
Tangent from an external point
利用对称求线段和最值（移动端）的副本
Discover Topics
Isosceles Triangles
Real Numbers
Conditional Probability
Variance
Orthocenter