Answer:
h = 13 ft
Explanation:
The following information is missing:
The hypotenuse of that triangle is 13√2 ft.
The 45°- 45°- 90° triangle theorem states that the length of the hypotenuse is √2 times the length of the legs. This means that, in this case, the length of the legs are 13 ft. One of the legs is the height of the wall.