Evaluate
\frac{\sqrt{5}}{10\pi }\approx 0.071176254
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\frac{\sqrt{5}}{2\left(\sqrt{5}\right)^{2}\pi }
Rationalize the denominator of \frac{1}{2\sqrt{5}\pi } by multiplying numerator and denominator by \sqrt{5}.
\frac{\sqrt{5}}{2\times 5\pi }
The square of \sqrt{5} is 5.
\frac{\sqrt{5}}{10\pi }
Multiply 2 and 5 to get 10.
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