Evaluate
5\pi \approx 15.707963268
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36\pi \times \frac{50}{360}
Multiply 2 and 18 to get 36.
36\pi \times \frac{5}{36}
Reduce the fraction \frac{50}{360} to lowest terms by extracting and canceling out 10.
5\pi
Cancel out 36 and 36.
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