Design (pseudocode and scource code in C# or JAVA a program that defines the following 3 methods:

Method isValid() returns true if the sum of the width and height is greater than 30

Method Area() returns the area of the rectangle if it is a valid rectangle

Method Perimeter() returns the perimeter of the rectangle if it is a valid rectangle

The main method of prompts the user to enter the width and height of a rectangle and uses methods to print out a message followed by the area and perimeter if the rectangle is valid. Otherwise, it prints out only the message This is invalid rectangle. Try again.. Note that method isvalid() is used to validate the input before attempting to compute the area and perimeter.

Document your code and properly label the input prompt and the outputs as shown below.

Sample run 1:

Entered width: 4

Entered height: 5

This is invalid rectangle. Try again

Sample run 2:

Entered width: 20

Entered height: 15

Area: 300

Perimeter: 70