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圓周
1. 圖一

圓周

Author:Angel Ng

圖一

New Resources

近似值：有效數字
兩組對邊相等的四邊形
四邊形的特性
Earth with coastline
Fibonacci Clock

Discover Resources

十行表
凹面鏡成像
面積認識
边长可变的正三角形上莱洛转子的滚动
Epicycloid

Discover Topics

Statistics
Mode
Hypothesis Testing
Orthocenter
Solids or 3D Shapes

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