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2014希望盃九年級初試第九題
Author:
連琨銘
GeoGebra
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異分母分數減法
画直线等分三角形的面积
三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
兩位數加法
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動畫
Compare areas by cutting shapes Q1
扇形弧長公式3
ghk105b19 切線長度
Copy of 正方體的反射對稱3
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Poisson Distribution
Matrices
Exponential Functions
Similar Triangles
Linear Programming or Linear Optimization