datastructure7

///Home Work 7 @Nurnobi shanto
#include<stdio.h>
float areaCircle(float a,float b)
{
    float A=a*a*b;
    return A;
}
int main()
{
    float A,r,p;
    printf("Enter Argument of Circle:");
    scanf("%f",&r);
    p=3.1416;
    A=areaCircle(r,p);
    printf("Area of Circle: %.2f",A);
    return 0;
}