Evaluate
\sqrt{2791}\approx 52.829915767
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\sqrt{\left(100-54\right)^{2}+3\times 15^{2}}
Multiply 20 and 5 to get 100.
\sqrt{46^{2}+3\times 15^{2}}
Subtract 54 from 100 to get 46.
\sqrt{2116+3\times 15^{2}}
Calculate 46 to the power of 2 and get 2116.
\sqrt{2116+3\times 225}
Calculate 15 to the power of 2 and get 225.
\sqrt{2116+675}
Multiply 3 and 225 to get 675.
\sqrt{2791}
Add 2116 and 675 to get 2791.
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