Write a C++ program to find and display area, circumference and diameter of a circle.
Source code:
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
float r,area,circum,diameter;
cout<<"Enter radius-";
cin>>r;
area=3.14*r*r;
circum=2*3.14*r;
diameter=2*r;
cout<<"Area="<<area<<endl;
cout<<"Circumference="<<circum<<endl;
cout<<"Diameter="<<diameter<<endl;
getch();
}
Output:
