babyface3084
babyface3084
01-03-2018
Mathematics
contestada
determine the area of a 21ft circle
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sqdancefan
sqdancefan
04-03-2018
A = (π/4)*d^2
.. = (π/4)*(21 ft)^2
.. = 110.25π ft^2
.. ≈ 346.36 ft^2
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