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正七邊形2
Author:
李春培
正七邊形2
GeoGebra
New Resources
兩位數加法
三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
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兩針夾角
Hamid Naderi Yeganeh segment2
Illusion-外凸的正方形
S3 Ch4.1 立體圖形(3D圖) - 十字形棱柱(ViewA)
跳棋棋盘
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Rhombus
Geometry
Cube
Arithmetic
Integral Calculus