Wap’C’ to find area of circle using pointer

#include<stdio.h>
#include<conio.h>
void area of circle(float *r, float *aoc)
   {
       aoc=((3.14)(r)(*r));
   }
void main()
  {
    float r, aoc;
    printf("Enter the radius : ");
    scanf("%f",&r);
    areaofCircle(&r,&aoc);
    printf("area of circle is : %f",aoc);
  }