Evaluate
226\pi \approx 709.999939711
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\pi \times 210+\pi \times 4^{2}
Multiply 14 and 15 to get 210.
\pi \times 210+\pi \times 16
Calculate 4 to the power of 2 and get 16.
226\pi
Combine \pi \times 210 and \pi \times 16 to get 226\pi .
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