Evaluate
\frac{7828\pi }{25}\approx 983.695491692
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15.2\pi \times 13+2\pi \times 7.6^{2}
Multiply 2 and 7.6 to get 15.2.
197.6\pi +2\pi \times 7.6^{2}
Multiply 15.2 and 13 to get 197.6.
197.6\pi +2\pi \times 57.76
Calculate 7.6 to the power of 2 and get 57.76.
197.6\pi +115.52\pi
Multiply 2 and 57.76 to get 115.52.
313.12\pi
Combine 197.6\pi and 115.52\pi to get 313.12\pi .
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