somebody please help

Answer:
24
Step-by-step explanation:
Hi hi ok so heres how you do this:
This is a right triangle cause of the lil' red angle indication.
So, we use Pythagorean theorem.
a^2+b^2=c^2
Now, we have a and c(or b and c. A and B are interchangeable)
10^2+b^2=26^2
100+b^2=676
676-100=576
Now, square root of 576 is 24.
the other leg is 24
Answer:
25 cm
Step-by-step explanation:
Using the Pythagorean Theorem (a^2+b^2=c^2 FOR RIGHT TRIANGLES ONLY), you see that 10^2+b^2=26^2, and the answer is b=25 cm.
BTW=10, 25, 26 is a pythagorean triple