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三角形面積公式 1/2 bc sinA
Author:
羅驥韡 (Pegasus Roe)
Topic:
Area
GeoGebra
New Resources
拼砌四邊形
畫出對稱圖形
兩位數加法
【案例】圆柱体内放置一个大球六个小球
兩位數除以一位數（二）
Discover Resources
兩圓的位置關係
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Division Algorithm & Remainder Therorem 除法算式與餘式定理
gct-a01-jc091v1-27 三角形旋轉
很厲害喔
Discover Topics
Median Line
Rhombus
Geometry
Cone
Centroid or Barycenter