Evaluate
10\sqrt{39}\approx 62.449979984
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\sqrt{3900}
Multiply 156 and 25 to get 3900.
10\sqrt{39}
Factor 3900=10^{2}\times 39. Rewrite the square root of the product \sqrt{10^{2}\times 39} as the product of square roots \sqrt{10^{2}}\sqrt{39}. Take the square root of 10^{2}.
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