Evaluate
392\pi \approx 1231.504320207
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392\pi
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14\pi \left(21+7\right)
Multiply 2 and 7 to get 14.
14\pi \times 28
Add 21 and 7 to get 28.
392\pi
Multiply 14 and 28 to get 392.
14\pi \left(21+7\right)
Multiply 2 and 7 to get 14.
14\pi \times 28
Add 21 and 7 to get 28.
392\pi
Multiply 14 and 28 to get 392.
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