C# create ShapesDemo

Question

create an application named ShapesDemo that creates several objects that descent from abstract class called GeometricFigure. Each GeometricFigure include a height, width and an area. provide get and set accessors dor each field except area; the area is computed and is read-only. include and abstract method called ComputeArea() that computes the area of the GeometricFigure.

• A Rectangle is geometricFigure whose area is determined by multiplying width by height.
• a Square is a Rectangle in which the width and height are the same. provide a constructor that accepts both height and width, forcing them to equal if they are not. provide a second constructor that accepts just one dimension and uses it for both height and width. The square class uses the rectangle's ComputeArea() method.
• A Triangle is a Geometric
• figure whose area is determined by multiplying the width by half the height.