Computed Property From an Interface

The IShape interface requires a read-only Area property. The Rectangle class already stores its width and height. Complete the Area property so it returns width * height. The tester creates a rectangle and prints its area. Do NOT write a Main method.

For a 4-by-5 rectangle the program prints the output shown in Expected Output.

Expected Output:

20↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Interfaces

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