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救生員區域
Author:
張丰耘
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
柱體建築師
畫出對稱圖形
Discover Resources
矩形
長方形
p11-10
多邊形的伸縮
拖拉小正方体
Discover Topics
Multiplication
Rhombus
Secant Line or Secant
Symmetry
Variance