Evaluate
\frac{27\pi }{2}\approx 42.411500823
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81\pi \times \frac{60}{360}
Multiply 9 and 9 to get 81.
81\pi \times \frac{1}{6}
Reduce the fraction \frac{60}{360} to lowest terms by extracting and canceling out 60.
\frac{81}{6}\pi
Multiply 81 and \frac{1}{6} to get \frac{81}{6}.
\frac{27}{2}\pi
Reduce the fraction \frac{81}{6} to lowest terms by extracting and canceling out 3.
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