To determine the length of the hypotenuse in the second right triangle, we can use the properties of 45-degree angles in right triangles.
In a right triangle with a 45-degree angle, the sides opposite the 45-degree angles (let's call them \(a\)) are equal, and both sides are equal to each other. The hypotenuse \(c\) can be calculated using the formula:
\[ c = a\sqrt{2} \]
For the second triangle, where the side opposite the 45-degree angle has a length of 14, we can substitute \(a = 14\) into the formula:
\[ c = 14\sqrt{2} \]
Therefore, the length of the hypotenuse in the second triangle is:
\[ \boxed{14\sqrt{2}} \]