Test for an Interface With `is`

Complete the static method ShapeInspector.Describe(object item). If item implements IShape, return Area is  followed by its area; otherwise return Not a shape. Use the is type-check. Do NOT write a Main method.

For a Rectangle(2, 5) then the string "hello" the program prints the output shown in Expected Output.

Expected Output:

Area is 10↵
Not a shape↵

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

Hints4 available

Topics:

Interfaces

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