Evaluate
12\sqrt{2}\approx 16.970562748
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\sqrt{144+12^{2}}
Calculate 12 to the power of 2 and get 144.
\sqrt{144+144}
Calculate 12 to the power of 2 and get 144.
\sqrt{288}
Add 144 and 144 to get 288.
12\sqrt{2}
Factor 288=12^{2}\times 2. Rewrite the square root of the product \sqrt{12^{2}\times 2} as the product of square roots \sqrt{12^{2}}\sqrt{2}. Take the square root of 12^{2}.
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