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geo123
Author:
hsu hung yang
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GeoGebra
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四邉形 (四年級) 教師版
兩組對邊相等的四邊形
錐體建築師
【案例】圆柱体内放置一个大球六个小球
球体的体积推导
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拋物線標準式101.11.22
銳角、直角和鈍角
vertex of quadratic function
tytyty
工具：PlaneArrows, PlaneText... (v.2)
Discover Topics
Linear Programming or Linear Optimization
Conic Sections
Secant Line or Secant
Interest Calculation
General Quadrilateral