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Right Triangles in a Circle 圓內的直角三角形
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
異分母分數減法
拼砌四邊形
算柱 (兩位數)
球体的体积推导（优化版）
兩位數除以一位數（二）
Discover Resources
三角形外心
分割
glt-c02-02 四角柱旋轉
P4 多邊形周界01 測試
sin(x) 的函數圖形的副本
Discover Topics
Kite
General Quadrilateral
Upper and Lower Sum or Riemann Sum
Combinatorics
Set Theory