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長方形
Author:
Yin Kelvin Wong
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
拼砌四邊形
兩位數除以一位數（一）
第八周作业
兩位數除以一位數（二）
Discover Resources
equilateral triangle construction
Spotlight 探射燈
草枝襬 敢羚羊
Geometric Circle
o'clcok
Discover Topics
Division
Quadratic Functions
Pyramid
Frequency Distribution
Limits