Evaluate
27\sqrt{3}\approx 46.765371804
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3\times 9\sqrt{3}
Factor 243=9^{2}\times 3. Rewrite the square root of the product \sqrt{9^{2}\times 3} as the product of square roots \sqrt{9^{2}}\sqrt{3}. Take the square root of 9^{2}.
27\sqrt{3}
Multiply 3 and 9 to get 27.
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