Write a program using xcode that has a Circle class as the Model (Circle.h and C

Question

Write a program using xcode that has a Circle class as the Model (Circle.h and Circle.m). The Circle class contains a radius data member and its setter and getter (the setter should not allow a negative value) and the class should contain getters to compute the circumference and area. The application should be in (main.m) and display a menu (The View): Compute Circle's Area Computer Circle's Circumference Quit The user can make a selection then be prompted for the radius data and compute the area or circumference based on the users selection. The menu should be redisplayed after each operation until the user selects 3 to quit (The Controller).

Explanation / Answer

And then the implementation:

And then for main:

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