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proof30黃煒皓
Author:
郭亮偉
GeoGebra
New Resources
【案例】2013年安徽高考15题
四邊形的特性
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
Discover Resources
旋轉體：Washer Method
line equation
DSE Circle-ACT06 Relationship of Tangents and Radius of a Circle
梯形的高
剪切成正三棱柱（制作：李三军，修订：孟宝兴）
Discover Topics
Hyperbola
Division
Tree Diagrams
Subtraction
Square