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Trapezium fixed height
Author:
iedc
GeoGebra
New Resources
三位數除以一位數（一）
兩位數除以一位數（二）
三位數除以一位數（二）
異分母分數減法
【案例】2013年安徽高考15题
Discover Resources
三角形三內角和為 180°
SLOPE
(3D) Tasks: Pyramid, Paper folding & Solid of revolution[20170615]
旋轉對稱 Rotational symmetry
可拖动A、B 改变形状
Discover Topics
Power Functions
Cylinder
Linear Equations
Sphere
Secant Line or Secant