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正n多邊形面積逼近圓面積
Author:
yuchengda
Topic:
Geometry
以正n多邊形面積逼近圓面積
GeoGebra
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算柱 (兩位數)
找出對稱軸
兩組對邊相等的四邊形
球体的体积推导（优化版）
兩組對邊相等和有直角的四邊形
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Roger Test Draw
Triangle Inequalities
Volume_Section
三角形分類
环形跑道问题案例的制作
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Quadratic Functions
Geometric Mean
Sine
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