A rectangular tank with a square base, an open top, and a volume of 10,976 ft is to be constructed of sheet steel. Find the dimensions of the tank that has the minimum surface area. Let's be the length of one of the sides of the square base and let A be the surface area of the tank. Write the objective function. A = (Type an expression.) The interval of interest of the objective function is (Simplify your answer. Type your answer in interval notation.) The tank with the minimum surface area has a height of __it and a square base with a sidelength of ft