The Pythagorean Theorem is used to to find the sides of a right triangle :

where a and b are the legs of the triangle
and
c is the hypotenuse
From the given problem :
The legs are 2 and 3
Using the formula above, the hypotenuse will be :

Take the square root of both sides :
![c=\sqrt[]{13}](https://img.qammunity.org/2023/formulas/mathematics/college/k17yga8fa0gzeqv8q1arjtlgot9imb6z1k.png)
The correct answer is Choice B. √13