multilevelinheritance added

[VARSHAGURBANI]

In this we explore multi-level inheritance. Suppose, we have a class A which is the base class and we have a class B which is derived from class A and we have a class C which is derived from class B, we can access the functions of both class A and class B by creating an object for class C. Hence, this mechanism is called multi-level inheritance. (B inherits A and C inherits B.)

question:-Create a class called Equilateral which inherits from Isosceles and should have a function such that the output is as given below.

this has also been asked in various companies interview.