Evaluate
975\pi \approx 3063.05283725
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\pi \times 225+2\pi \times 15\times 25
Calculate 15 to the power of 2 and get 225.
\pi \times 225+30\pi \times 25
Multiply 2 and 15 to get 30.
\pi \times 225+750\pi
Multiply 30 and 25 to get 750.
975\pi
Combine \pi \times 225 and 750\pi to get 975\pi .
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