Question 659870
plz mention which side is hypotenuse

if c is hypotenuse
then,
by pythagoras theorem
a^2 + b^2 = c^2
7^2 + b^2 = 25^2
b^2 = 25^2 - 7^2
b^2 = 625 - 49
b^2 = 576
b = 24