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固定周界的長方形面積變化
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Perimeter
,
Square
GeoGebra
New Resources
錐體建築師
畫出對稱圖形
三位數除以一位數（一）
柱體建築師
兩組對邊相等和有直角的四邊形
Discover Resources
少一塊
五上_分數乘法(學生版)
工作紙題1
空間坐標
勝者即正義
Discover Topics
Circle
Vectors 2D (Two-Dimensional)
Quadratic Equations
Trigonometric Functions
Random Variables