Created two components (two dll files) and used them in the CBSE project.
Component 1: ClassLibrarySimpleCalculator.dll Performs 4 basic mathematical operations: addition, subtraction, multiplication and division and 2 logical operations: and, or
Component 2: ClassLibraryAreaCalculator.dll Calculates the area of a triangle, rectangle and circle
This is how the solution explorer for the CBSE project looks like after adding the two dll files in the CBSE project.
