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蝴蝶線 butterfly line
Author:
MathChou
Click "Run/Stop" button to try the move.
GeoGebra
New Resources
錐體建築師
第八周作业
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
Discover Resources
色彩視覺藝術
座標
極值問題
橢圓軌跡
三角形的四心－五線－內外二圓的副本
Discover Topics
Orthocenter
Fractions
Random Experiments
Trapezoid
Geometric Transformations