Answer:
37
Explanation:
This is a right triangle so we can find the lengths by using the Pythagorean theorem
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
12^2 + 35^2 = c^2
144 +1225 = c^2
1369 = c^2
Take the square root of each side
sqrt(1369) = sqrt(c^2)
37 =c