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面積題 E
Author:
spkwan
GeoGebra
New Resources
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
異分母分數減法
兩位數除以一位數（一）
Discover Resources
Chapter02
gjc091b18 圓的割線
雙曲線 定義畫圖
交錯級數(Roger B. Nelsen)
擲兩個硬幣的機率分布
Discover Topics
Difference and Slope
Plane Figures or Shapes
Root
Circumcircle or Circumscribed Circle
Complex Numbers