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九上第24章《圆》P118-活动1-车轮做成圆形的数学道理(赵朝东)
Author:
赵朝东
九上第24章《圆》P118-活动1-车轮做成圆形的数学道理(赵朝东)
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【案例】圆柱体内放置一个大球六个小球
兩組對邊相等和有直角的四邊形
判斷球體
畫出對稱圖形
【案例】2018年全国1卷理科12题
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機率統計
test03繪本用
圆在多边形上滚动
EX11圖形8
马鞍面旋转
Discover Topics
Right Triangles
Algebra
General Quadrilateral
Rhombus
Division