Evaluate
360\sqrt{10}\approx 1138.419957661
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180\sqrt{40}
Multiply 2 and 90 to get 180.
180\times 2\sqrt{10}
Factor 40=2^{2}\times 10. Rewrite the square root of the product \sqrt{2^{2}\times 10} as the product of square roots \sqrt{2^{2}}\sqrt{10}. Take the square root of 2^{2}.
360\sqrt{10}
Multiply 180 and 2 to get 360.
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