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三角形三边关系
Author:
数豆豆
GeoGebra
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異分母分數減法
【案例】圆柱体内放置一个大球六个小球
算柱 (兩位數)
兩組對邊相等的四邊形
画直线等分三角形的面积
Discover Resources
waaachen
公弦
三角形的分割與組合(1)
分數加法
Size, Shape, Orientation
Discover Topics
Combinatorics
Sphere
Quadrilaterals
Plane Figures or Shapes
Straight Lines