Answer:
13 cm
Step-by-step explanation:
Use Pythagora's theorem to solve for the hypotenuse of the triangle:

Where a and b are the two shorter legs, and c is the hypotenuse.
Replace the values in and solve for c:

Then try your best and reach your limit
Y-intercept(b)= 10
equation wasnt written in the correct order so b is 10
It's B, I'm doing my online school assignment and this was the correct answer.