P=70 d=25 Let’s name length y and width x x+x+y+y=70 2x+2y=70 Now we need to write phytagoras theorem for the second equation. x^2+y^2=25^2 x^2+y^2=625 {2x+2y=70 {x^2+y^2=625
{x=35-y {(35-y)^2+y^2=625
Now just solve it for y yourself❤️hope this helped
