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GeoGebra
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10/20
Author:
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GeoGebra
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探究三角形的全等條件
【案例】2013年安徽高考15题
球体的体积推导
兩位數除以一位數（一）
空间中两直线的位置关系
Discover Resources
垂心即內心
線型函數圖形測驗
相似三角形
三角形的三中線交於一點(重心)
arithmetic operation
Discover Topics
Set Theory
Polynomial Functions
Mathematics
Straight Lines
Percentages