Area of a circle in C Language :
#include<stdio.h> int main() { float pi=3.14; int r; printf("Enter the value of r:\n"); scanf("%d",&r); float area= pi*(r*r); printf("The Area of cicle is: %f",area); return 0; }
Output:
Enter the value of r: 20 The area of cicle is : 1256.000
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