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三角函數
Author:
Tina Lin
Topic:
Trigonometric Functions
GeoGebra
New Resources
兩位數除以一位數（一）
拼砌四邊形
球體建築師
畫出對稱圖形
三位數除以一位數（二）
Discover Resources
test for 2nd view
color
橢圓動畫
quadrilaterals 6
四邊形四個九點圓共點(九點心)
Discover Topics
Isosceles Triangles
Division
Plane Figures or Shapes
Congruence
Logic