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Triangle fixed height
Author:
iedc
GeoGebra
New Resources
兩組對邊相等的四邊形
【案例】2013年安徽高考15题
兩位數除以一位數（一）
算柱 (兩位數)
判斷球體
Discover Resources
公因數與公倍數
畢氏定理
盾牌
滑桿應用
earth
Discover Topics
Cosine
Distributions
Straight Lines
Quadratic Equations
Incircle or Inscribed Circle