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三线八角
Author:
Guo Kan
三线八角： 可以移动O点以改变红色直线的位置
GeoGebra
New Resources
四邊形的特性
兩組對邊相等的四邊形
Nested spiral octagon
AI 訓練教室
畫出對稱圖形
Discover Resources
題六
mth2101
謝爾賓斯基三角形
Indices 4
平面截正方体
Discover Topics
Frequency Distribution
Rational Numbers
Orthocenter
Exponential Functions
Probability