Evaluate
3000\pi \approx 9424.777960769
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2\pi \times 900+2\pi \times 30\times 20
Calculate 30 to the power of 2 and get 900.
1800\pi +2\pi \times 30\times 20
Multiply 2 and 900 to get 1800.
1800\pi +60\pi \times 20
Multiply 2 and 30 to get 60.
1800\pi +1200\pi
Multiply 60 and 20 to get 1200.
3000\pi
Combine 1800\pi and 1200\pi to get 3000\pi .
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