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音樂會的入場人數
Author:
iedc
GeoGebra
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湖南省张毅郴数字教研工作室 logo
美國國旗 (Codex, 2026.10.06)
近似值：有效數字
中華民國國旗 (Codex╱2026.10.06)
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Arcs and Angles at Centre/ Circumference 弧、圓心角與圓周角
Sectors 扇形
判斷錐體 2
相似三角形
根據百分率找數量（二）: 例3的副本
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Parallelogram
Parabola
Vectors 2D (Two-Dimensional)
Upper and Lower Sum or Riemann Sum
Straight Lines