Evaluate
12265625\pi \approx 38533597.391687304
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\frac{\pi \times 2500}{4}\times 19625
Calculate 50 to the power of 2 and get 2500.
\pi \times 625\times 19625
Divide \pi \times 2500 by 4 to get \pi \times 625.
\pi \times 12265625
Multiply 625 and 19625 to get 12265625.
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