Mathematics
         
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           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation (π*(48.3/2)^2-π*(40/2)^2)*138000*7.93 .
    Question type: Mathematical calculation
    Solution:
          (π*(48.3/2)^2-π*(40/2)^2)*138000*7.93
        =(π*24.15^2-π*(40/2)^2)*138000*7.93
        =(π*24.15^2-π*20^2)*138000*7.93
        =575.61046*138000*7.93
        =79434243.48*7.93
        =629913550.7964

    Answer:(π*(48.3/2)^2-π*(40/2)^2)*138000*7.93=629913550.7964


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