Answer: 41
====================================================
Explanation:
a = 9 and b = 40 are the legs of the right triangle
c is the unknown hypotenuse
Use the pythagorean theorem to find c
a^2 + b^2 = c^2
9^2 + 40^2 = c^2
81 + 1600 = c^2
c^2 = 1681
c = sqrt(1681)
c = 41 meters is the length of the hypotenuse
