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Drawing quadrilaterals on the grid or the pinboard
Author:
Anthony OR 柯志明
GeoGebra
New Resources
畫出對稱圖形
直角坐標平面上的旋轉變換
拼砌四邊形
算柱 (兩位數)
第八周作业
Discover Resources
比流器3相連接方法--U,Z,Y,Δ
動態文字指數函數
congruent (SSS) 2
線性規劃
小正多边形在大正多边形内的滚动（边长不相等）
Discover Topics
Secant Line or Secant
Trigonometry
Trigonometric Functions
Step Functions
Arithmetic