Step-by-step explanation:
We are given a right angled triangle, in which lengths of perpendicular sides are 24 and 7 units. We are required to find the length of hypotenuse which is marked as x.
Therefore, by Pythagoras theorem:
[tex]x = \sqrt{ {24}^{2} + {7}^{2} } \\ = \sqrt{576 + 49} \\ = \sqrt{625} \\ = 25[/tex]