Respuesta :

the hint tells you s is sqrt(a)

 the question tells you a = 570025

so side = sqrt(570025)

 plug that into your calculator to get:

755 feet

21) Each side is 755 in
To do this all you'll need to do is find the root of 570,025, which is 755

22) Each side is 25 in
Again, you'll need to find the square root of 625, which is 25