Given the radius of a Circle, write a C program to calculate circumference of the Circle.
Page Contents
circumference = 2 * PI * radius;
Where PI is approximately equal to 3.14
Related Read:
Basic Arithmetic Operations In C
User Input:
Enter Radius of the Circle
5
Output:
Circumference of the Circle is 31.400002
Video Tutorial: C Program To Calculate Circumference of Circle
#include<stdio.h> int main() { const float PI = 3.14; float r, c; printf("Enter Radius of the Circle\n"); scanf("%f", &r); c = 2 * PI * r; printf("Circumference of the Circle is %f\n", c); return 0; }
Output 1:
Enter Radius of the Circle
10
Circumference of the Circle is 62.800003
Output 2:
Enter Radius of the Circle
41
Circumference of the Circle is 257.480011
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