Evaluate
24\pi \approx 75.398223686
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4\pi \times 5+\pi \times 2^{2}
Multiply 2 and 2 to get 4.
20\pi +\pi \times 2^{2}
Multiply 4 and 5 to get 20.
20\pi +\pi \times 4
Calculate 2 to the power of 2 and get 4.
24\pi
Combine 20\pi and \pi \times 4 to get 24\pi .
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