Evaluate
6\sqrt{181}\approx 80.721744282
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3\times 2\sqrt{181}
Factor 724=2^{2}\times 181. Rewrite the square root of the product \sqrt{2^{2}\times 181} as the product of square roots \sqrt{2^{2}}\sqrt{181}. Take the square root of 2^{2}.
6\sqrt{181}
Multiply 3 and 2 to get 6.
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