**Circumference :-**Circumference of circle is the distance around the circle. Calculate The Circumference of Circle By Given Formula

**Circumference = 2*π*r**

Here

**PI (π)**is a Greek Letter and

**r**is a Radius (1/2 Of Diameter )

**PI (π) = 3.141592653589793**Approx. It Is A Constant Value for more about Circumference Click Here

**Area =π *r*r**

For more about Area Of Circle Click Here

**See Also :-C Program To Find Area And Circumference Of Circle**

**Solution :-**

#include<iostream>

using namespace std;

int main()

{

/*Program By Ghanendra Yadav

Visit http://www.programmingwithbasics.com/

*/

int rad;

float PI = 3.14, area, ci;

cout<<"Enter radius of circle: ";

cin>>rad;

area = PI * rad * rad;

cout<<"Area of circle "<< area<<endl;

ci = 2 * PI * rad;

cout<<"Circumference of circle "<< ci<<endl;

return (0);

}

**See Also :-JAVA Program To Find Area And Circumference Of Circle**

**Output:-**

## 0 Comments: