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幾何探索2~畢氏定理
Author:
黃義凱
GeoGebra
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镂空正方体案例对比
百分數及其應用
小学资源收集
椭圆内切圆链
盈利與虧蝕
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特別角的三角函數值(2)
線性組合1:正六邊形
Ambiguous Cylinder Illusion
gltyz 矩形旋轉體
拋物線3--平行四邊形法
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Probability
Isosceles Triangles
Addition
Straight Lines
Quadratic Functions