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ex 9
Author:
LAM YU SANG
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等的四邊形
三位數除以一位數（二）
畫出對稱圖形
小数 的副本
Discover Resources
分段移動
Angles in intersecting and parallel lines
圓周角與圓心角之度數關係臆測（圓心在圓周角的內部）
自製工具：CurveFit, Bezier
雙曲線(上下型)標準式
Discover Topics
Terms
Vectors
Pythagoras or Pythagorean Theorem
Cone
Probability