Answer:
24
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² + 7² = 25² ( x is the missing leg )
x² + 49 = 625 ( subtract 49 from both sides )
x² = 576 ( take the square root of both sides )
x = [tex]\sqrt{576}[/tex] = 24
