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ie 2

Author:LAM YU SANG

New Resources

找出對稱軸
球體建築師
兩組對邊相等的四邊形
三位數除以一位數（二）
四邊形的特性

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這好難用
Golden Spiral
Shen Kuo Frustum
heart
正立方體裁邊 (Chamfered Cube)

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Geometry
Unit Circle
Reflection
Area
Mode

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