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圓周角
Author:
周桂名
Topic:
Circle
發現圓周角與所對弧的關係
GeoGebra
New Resources
四邊形的特性
【案例】2018年全国1卷理科12题
兩位數加法
sanjiaohanshu
四邉形 (四年級) 教師版
Discover Resources
Polygon Activity
線外一點
area 面積2
拉面直径例题
公切線的引入
Discover Topics
Multiplication
Complex Numbers
Cuboid
LCM and GCD
Distributions