Evaluate
3\sqrt{455}\approx 63.992187023
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\sqrt{\frac{20475}{5}}
Multiply 455 and 45 to get 20475.
\sqrt{4095}
Divide 20475 by 5 to get 4095.
3\sqrt{455}
Factor 4095=3^{2}\times 455. Rewrite the square root of the product \sqrt{3^{2}\times 455} as the product of square roots \sqrt{3^{2}}\sqrt{455}. Take the square root of 3^{2}.
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