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堆朵
Author:
hou yi ting
想堆幾層就堆幾層
GeoGebra
小心不要倒下來
New Resources
三位數除以一位數（一）
找出對稱軸
畫出對稱圖形
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
Discover Resources
等分例子
repetitive squares by excel
Copy of 固定面積的圖形的周界變化
广义三角函数的化简(诱导公式)的副本
杨辉三角形
Discover Topics
Natural Numbers
Similar Triangles
Vectors
Tangent Line or Tangent
Symmetry