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蝴蝶線 butterfly line
Author:
MathChou
Click "Run/Stop" button to try the move.
GeoGebra
New Resources
找出對稱軸
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
sanjiaohanshu
算柱 (兩位數)
Discover Resources
Vector equation in R2
mario coin
Angles between line and planes in a cuboid
滑杆的數字接力賽-平移旋轉三角形填滿四邊形(加邊框)
自學練習_兩位數乘三位數
Discover Topics
Reflection
Integers
Combinatorics
Correlation
Logic