Evaluate
10\sqrt{13}\approx 36.055512755
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5\times 2\sqrt{13}
Factor 52=2^{2}\times 13. Rewrite the square root of the product \sqrt{2^{2}\times 13} as the product of square roots \sqrt{2^{2}}\sqrt{13}. Take the square root of 2^{2}.
10\sqrt{13}
Multiply 5 and 2 to get 10.
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