1.Two squares with a side length of 5 cm form a rectangle.What is the perimeter of the rectangle?2.When a 45 cm long wire is enclosed into a square with a side length of 9 cm,what is the length of the wire left?
文摘1.Two squares with a side length of 5 cm form a rectangle.What is the perimeter of the rectangle?2.When a 45 cm long wire is enclosed into a square with a side length of 9 cm,what is the length of the wire left?
