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圆的面积展开的副本
Author:
孙鉴
,
qianqianhouhou
拖动n分圆,拖动展开展开圆,拖动拼图拼成长方形。
GeoGebra
通过上面操作请推导圆的面积公式。
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AI 訓練教室
四邉形 (四年級) 教師版
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
球體建築師
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對數的遞增或遞減(底數小於1)
應用導數繪製函數圖形
直角坐标
hkdse 2014 by mr lo wy
工具:DimensionArrows
Discover Topics
Indefinite Integral
Continuity
Quadratic Equations
Curve Sketching
Perimeter