Problem 3. Calculations Given the length and width calculate the area and perimeter of a rectangle. Test Case: length = 12.50, width 4.25 Use these values in your program Remember that you can input values from the keyboard with the input statemerit like this: length input("Enter the length of the rectangle") width-input("Enter the width of the rectangle") Using the length and width from above calculate the area of a triangle with buse the same as length and height the same as width Using the length as the value for radius calculate the area of a circle