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畫鐘面的副本
Author:
Chan Lai Man
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
異分母分數減法
四邊形的特性
兩組對邊相等的四邊形
柱體建築師
兩位數除以一位數（一）
Discover Resources
謝爾賓斯基三角形 (Sierpinsky)
How to draw a decagon with ruler and compasses?
正三角形繞正方形旋轉
保持比例
Copy of 多項式函數
Discover Topics
Algebra
Vectors
Arithmetic Operations
Ellipse
Mode