The diagonal of a square is 15 m; find the length of its one side and perimeter.
A rectangular room whose width is 4/7 of its length x has a perimeter of y. Find the length and breadth (in meters) of the room when the perimeter is 4400 cm.
A rectangular room whose width is 4/7 of its length x has a perimeter of y.Find the length and breadth (in meters) of the room when the perimeter is 4400 cm.