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觀察軌跡求面積
Author:
連琨銘
GeoGebra
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湖南省张毅郴数字教研工作室 logo
兩組對邊相等和有直角的四邊形
近似值：有效數字
四邊形的特性
判斷球體
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題 2
觀察圖中有哪些角會相等
四下_面積（一）(學生版)
Sequence指令作圖-1
時鐘
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Isosceles Triangles
Upper and Lower Sum or Riemann Sum
Pie Chart or Circle Chart
Plane Figures or Shapes
Equations