Question

Your cousins Jimmy and Jenna (JJ) and studying geometry in school and need some help understanding the relationship between geometric shapes. You’ve offered to help with your newfound C# skills. Write a program that implements programmer defined methods for the following geometric functions – use double variables for all your calculations. a. Compute the area of a circle – method should have one parameter, the radius, and return the area b. Compute the circumference of a circle – method should have one parameter, the radius, and return the circumference c. Compute the area of a square – method should have one parameter, length of a side, and return the area d. Compute the perimeter of a square – method should have one parameter, length of a side, and return the perimeter e. Compute the area of a triangle – method should have two parameters, the base and height, and return the area Your program should use FIVE programmer‐defined methods (one for each of the calculations). Each method should have parameters and return the desired calculation. Your program should ask for values in Main(), call the procedures, and then output the returned value in Main().

Answer 1

Code

class GeometryShape
{
static void Main(string[] args)
{
string userChoice;
while(true)
{
menu();
userChoice = Console.ReadLine();
Console.WriteLine();
if (userChoice == "a" || userChoice == "b")
{
double radius;
Console.Write("Enter the radius of the circle: ");
radius = Convert.ToDouble(Console.ReadLine());
if (userChoice == "a")
{
Console.WriteLine("Area of the circle :" + calculateCircleArea(radius));
}
else
{
Console.WriteLine("Circumference of the circle :" + calculateCirclecircumference(radius));
}
}
else if (userChoice == "c" || userChoice == "d")
{
double length;
Console.Write("Enter the length of the square: ");
length = Convert.ToDouble(Console.ReadLine());
if (userChoice == "c")
{
Console.WriteLine("Area of the square :" + calculateSquareArea(length));
}
else
{
Console.WriteLine("Perimeter of the square :" + calculateSquareperimeter(length));
}
}
else if (userChoice == "e")
{
double b, h;
Console.Write("Enter base of the triangle: ");
b = Convert.ToDouble(Console.ReadLine());
Console.Write("Enter height of the triangle: ");
h = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Area of the triangle :" + calculateTriangleArea(b, h));
}
else if (userChoice == "q")
break;
else
Console.WriteLine("Invalid choice!");
Console.WriteLine();
}
}

private static double calculateTriangleArea(double b, double h)
{
return (b * h) / 2;
}

private static double calculateSquareperimeter(double length)
{
return 4 * (length);
}

private static double calculateSquareArea(double length)
{
return length * length;
}

private static double calculateCirclecircumference(double radius)
{
return 2 * Math.PI * radius;
}

private static double calculateCircleArea(double radius)
{
return Math.PI * radius*radius;
}

private static void menu()
{
Console.WriteLine("a. Compute the area of a circle");
Console.WriteLine("b. Compute the circumference of a circle");
Console.WriteLine("c. Compute the area of a square");
Console.WriteLine("d. Compute the perimeter of a square");
Console.WriteLine("e. Compute the area of a triangle");
Console.WriteLine("q. Quit");
Console.Write("Enter you choice: ");
}
}

output

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