Question

Helppppppp mathhhhhhhhhhhh

Answer 1

The area of a square is:

A=s^2, solve this for s

s=√A

The "diagonal" is the hypotenuse of a right triangle with legs of length s.  

By the Pythagorean Theorem:

d=√(s^2+s^2)

d=√(2s^2), and since we found that s=√A earlier:

d=√(2A), and since we are told that A=128m^2

d=√256

d=16m