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Drag the red dots, see the area ratio of EHFG to ABCD
Author:
johnmayhk
GeoGebra
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龙形曲线-分形龙2
第八周作业2
平行線的判定
圓的基本性質
撒针估算面积实验
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這是什麼角？
圓周角與圓心角的關係
軌跡觀察---心臟線
周界
二次函数的值
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Subtraction
Planes
Scatter Plot
Sine
Polygons