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固定面積的圖形周界變化
Author:
phcheng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
三位數除以一位數（二）
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
拼砌四邊形
Discover Resources
waaachen0001
由拉線80209傅筱茿螢橋國中
集合的交集
方程式(?)
speed
Discover Topics
Indefinite Integral
Line Segment
Expected Value
Statistics
Median Line