40.5的立方根是好多?派R的平方乘以0.62等于40.5求R等于好多?谢谢····

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40.5的立方根是好多?派R的平方乘以0.62等于40.5求R等于好多?谢谢····40.5的立方根是好多?派R的平方乘以0.62等于40.5求R等于好多?谢谢····40.5的立方根是好多?派R的平

40.5的立方根是好多?派R的平方乘以0.62等于40.5求R等于好多?谢谢····
40.5的立方根是好多?派R的平方乘以0.62等于40.5求R等于好多?
谢谢····

40.5的立方根是好多?派R的平方乘以0.62等于40.5求R等于好多?谢谢····
40.5的立方根是3.434142728,计算器算的.
πR^2*0.62=40.5
R^2=40.5/(π*0.62)=20.80
所以R=√20.80=4.56

r=4.5610711058058469431231239356513

约等于3.434 你可以直接写 40.5的立方根
约等于 80.822