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圓周
圓周
Author:
felixchow
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兩位數除以一位數(一)
【案例】2018年全国1卷理科12题
畫出對稱圖形
拼砌四邊形
兩組對邊相等和有直角的四邊形
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雙曲線之極偶 / polarity for hyperbola
中点轨迹
火箭
example 3
solid of revolution
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Linear Functions
Fractal Geometry
Continuity
Planes
Similar Triangles