Evaluate
12\sqrt{15}\approx 46.475800154
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\sqrt{2700\times 0.8}
Multiply 30 and 90 to get 2700.
\sqrt{2160}
Multiply 2700 and 0.8 to get 2160.
12\sqrt{15}
Factor 2160=12^{2}\times 15. Rewrite the square root of the product \sqrt{12^{2}\times 15} as the product of square roots \sqrt{12^{2}}\sqrt{15}. Take the square root of 12^{2}.
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