Question

what is the value of this expression?
\\\sqrt{5^2 + 12^2}\\

Explanation:

Evaluate the squares inside the radical

$$ 5^2 = 25 $$

$$ 12^2 = 144 $$

Sum the squared values

$$ 25 + 144 = 169 $$

Take the principal square root

$$ \sqrt{169} = 13 $$

Answer:

13