Question

Listing 1 shows ABCD.cpp program to compute diameter, circumference and area for a circle with r,...

Listing 1 shows ABCD.cpp program to compute diameter, circumference and area for a circle with r, radius without user-defined function. Listing 2 shows the expected output of ABCD.cpp on the screen after creating user-defined functions for 3 circles of radius. Write a complete code to compute an output of 3 circles with r, radius as shown in Listing 2. Your answer should have four (4) functions as stated below as function declaration.

double displayRadius(double);
double displayDiameter(double);
double displayCircumference(double);
double displayArea(double);



Homework Answers

Answer #1

source code:


#include <iostream>

using namespace std;

double displayRadius()
{
double r;
cout<<"Enter radius : ";
cin>>r;
return r;
}

double displayDiameter(double r)
{ //implementing functions
return r+r;
}

double DisplayCircumference(double r)
{
return 2*3.14*r;
}

double displayArea(double r)
{
return 3.14*r*r;
}

int main()
{
double r=displayRadius(); //calling functions
cout<<"radius is : "<<r;
cout<<"\nDiameter of circle is : "<<displayDiameter(r);
cout<<"\ncicu,ference of circle is : "<<DisplayCircumference(r);
cout<<"\nArea of circle is :"<<displayArea(r);

return 0;
}

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