The area of a square is stored in a double variable named area. write an expression whose value is length of the diagonal of the square.

You should specify what language you're using in these types of questions; here's an example in C++.

#include

#include

int main ()

{

/ / example area

double area = 25;

/ / square root the area to find the length

/ / then apply basic pythagoras

double diagonal = sqrt (pow (sqrt (area), 2) + pow (sqrt (area), 2));

return 0;

}