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Proof1 彭凱揚
Author:
郭亮偉
GeoGebra
New Resources
畫出對稱圖形
柱體建築師
四邉形 (四年級) 教師版
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
test for 2nd view
Value of Polynomial(多項式的值)
moon
不等式
Quiz on Solving One-step Linear Equations (1)
Discover Topics
Arithmetic Operations
Parametric Curves
Distributions
Tangent Line or Tangent
Area