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F2_Ch11.2_三角學(邊長與角的關係)
Author:
timothyngyf
GeoGebra
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兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
四邊形的特性
兩位數除以一位數（二）
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正四面體
parallelogram and squares
P53_3c
ABC 3
圓周率的應用 題1
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Probability
Subtraction
Reflection
Random Variables
Fractal Geometry