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Triangle on sphere
Author:
johnmayhk
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
四邊形的特性
判斷球體
Discover Resources
利用对称求线段和最值
test
心電感應
構作對稱圖形_FK1
固定周界的長方形的面積變化（周界是200厘米）
Discover Topics
Circumcircle or Circumscribed Circle
Ratios
Reflection
Linear Regression
Frequency Distribution