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畢氏定理(等面積變形法)
Author:
Tone
GeoGebra
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【案例】2013年安徽高考15题
畫出對稱圖形
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
兩組對邊相等的四邊形
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圓的內接四邊形
GeoGebraBook(for20151202)
蝴蝶線 butterfly line
Example 6.1
蚂蚁爬行
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Trapezoid
Percentages
Integers
Sine
Correlation