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直角三角形斜邊上的高小於斜邊的一半
Author:
chihchengliang
GeoGebra
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三位數除以一位數(一)
【案例】2018年全国1卷理科12题
拼砌四邊形
兩組對邊相等的四邊形
算柱 (兩位數)
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Area of trapezoid
過圓內一點與圓相切的圓
空間中的平面
等腰三角形外接圓上弦AB
集合的运算
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Reflection
Translation
Addition
Median Value
Mathematics