Evaluate
\frac{2432\pi }{25}\approx 305.614133341
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6.4\pi \times 12+2\pi \times 3.2^{2}
Multiply 2 and 3.2 to get 6.4.
76.8\pi +2\pi \times 3.2^{2}
Multiply 6.4 and 12 to get 76.8.
76.8\pi +2\pi \times 10.24
Calculate 3.2 to the power of 2 and get 10.24.
76.8\pi +20.48\pi
Multiply 2 and 10.24 to get 20.48.
97.28\pi
Combine 76.8\pi and 20.48\pi to get 97.28\pi .
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