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直角三角形斜邊上的高
Author:
Gideon Huang
GeoGebra
New Resources
近似值：有效數字
Earth with coastline
sanjiaohanshu
Nested spiral octagon
AI 訓練教室
Discover Resources
Triangle
菱形
[洋葱] 四边形与旋转变换
Copy of 劉徽的「割圓術」
C60足球模型（多边形）
Discover Topics
Surface
Plane Figures or Shapes
Random Variables
Equations
Line Segment