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Verification of Pythagoras Theorem 驗証畢氏定理
Author:
Alex CHIK
Topic:
Pythagoras or Pythagorean Theorem
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
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兩位數除以一位數（二）
近似值：有效數字
【案例】2018年全国1卷理科12题
sanjiaohanshu
兩組對邊相等和有直角的四邊形
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Upper and Lower Sum or Riemann Sum