Answer:
127.3 ft
Explanation:
A square has side 90 ft.
We need the length of the diagonal of the square.
Use two adjacent sides of the square as legs of right triangle.
We need to find the length of the hypotenuse.
a² + b² = c²
90² + 90² = c²
c² = 16,200
c = 127.27922...
Answer: 127.3 ft