Help me in solving PPSC16 problem

help
,
1

My issue

I PUT RADIUS=8.9,PI=3.14 AND AREA=PI*RADIUS^2 AND I USE %f but i am getting answer 0

My code

#include <stdio.h>

int main(void) {
    int radius=8.9, pi=3.14;
    int area;
    area=pi * radius * radius;

    printf("The Area of the given circle is%f", area);
    // your code goes here

}

Learning course: CSEIPFOIA: Programming and Problem Solving
Problem Link: Double datatype Practice Problem in CSEIPFOIA: Programming and Problem Solving - CodeChef