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定周长的正多边形面积变化规律(含圆)
Forfatter
张英华
Emne:
Areal
GeoGebra
Nye Materialer
兩位數加法
錐體建築師
【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
找出對稱軸
Opdag Ressourcer
Quiz on Scientific Notation
US Unemployment 200701~201707
小六_百分數(一)
直角坐標的旋轉變換
圆锥的侧面展开图3D动画的副本
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Plane figurer eller former
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