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PreEnigma-1
Author:
Hsin-Po Wang
GeoGebra
New Resources
四邉形 (四年級) 教師版
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
畫出對稱圖形
Discover Resources
正餘弦函數的疊合之二102.11.29
龍騰4_1-1習6-1
數的組合 (簡易)
現學現賣test
Area of triangle using 0.5bs sinA
Discover Topics
Exponent
Plane Figures or Shapes
Isosceles Triangles
Statistics
Scalene Triangles