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quadrilaterals 1
Author:
iedc
GeoGebra
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異分母分數減法
球体的体积推导
【案例】圆柱体内放置一个大球六个小球
兩位數加法
判斷球體
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Addition and Subtraction of Directed Numbers (1) 有向數加減(1)
塗鴉
面積
題四
拋物線3-平行四邊形法
Discover Topics
Differential Equation
Upper and Lower Sum or Riemann Sum
General Quadrilateral
Equilateral Triangles
Trapezoid