圆面积如何算
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圆面积如何算圆面积如何算圆面积如何算S=πr²圆面积=圆周率π乘以圆半径r的平方。πr²或3.14×r²rtfhyfyuguguhkjujjjjjjjjjjjjjjjjj
圆面积如何算
圆面积如何算
圆面积如何算
S=πr²
圆面积=圆周率π乘以圆半径r的平方。
π r ² 或 3.14 × r ²
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