**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

**Solution :-**

int main()

{

/*Program By Ghanendra Yadav

Visit http://www.programmingwithbasics.com/

*/

int rad;

float PI = 3.14, area, ci;

printf("\nEnter radius of circle: ");

scanf("%d", &rad);

area = PI * rad * rad;

printf("\nArea of circle : %f ", area);

ci = 2 * PI * rad;

printf("\nCircumference : %f ", ci);

return (0);

}

See Also :-

**JAVA Program To Find Area And Circumference Of Circle**

**Output:-**

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