Question

if one side of a square is increased by 2 m and the other side is reduced by 2 m a rectangle is formed whose perimeter is 48.find the side of the square

Answer 1

side of the square : x   m
sides of the rectangle: x+2 m and x-2 m

perimeter of the rectangle: 2(x+2 +x-2) = 4 x = 48 m

x = 12 m