): Create a class Rectangle with attributes length and width, each of which defaults to 1. Provide methods that calculate the rectangle’s perimeter and area. Use set and get methods for both length...

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Create a class Rectangle with attributes length and width, each of which defaults to 1. Provide methods that calculate the rectangle’s perimeter and area. Use set and get methods for both length and width. The set methods will verify that length and width are each floating-point numbers larger than 0.0 and less than 20.0. Write a program to test class Rectangle.