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扇形公式
更新时间: 2021-01-20 17:09:13  

1、扇形面积计算公式:S=(n÷360)×π×r ^2 π是圆周率,r是扇形的半径,n是圆心角的度数。

2、扇形周长公式:C=2r×(n÷360)。

3、扇形的弧长公式:l=(n÷180)×π×r, l是弧长,n是扇形圆心角,π是圆周率,r是扇形半径。

关键词: 扇形 公式

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