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GeoGebra
畫鐘面的副本
Author:
GeoGebra Institute of Hong Kong
,
New Resources
程自顺99
程自顺101
Circle Area (By Peeling!)
程自顺102
其它
Discover Resources
圓錐截痕
把手(環面)
紙飛機
斜二测画
教学素材：椭圆与双曲线
Discover Topics
Pythagoras or Pythagorean Theorem
Volume
Straight Lines
Arithmetic Operations
Angles
