C program Degree to Radians

How would you do this c program, I'm a beginner I'm just starting with C, and i can't figure out how to finish the middle part.

Complete the following C program that first reads a, b, c, where a and b are two degrees and c is increment. The program then generates a table of conversions from degrees to radians. Start degrees at a and increment by c until the degree is greater than b.

Recall that we say 180o is equal to π radian.

You can assume that π is 3.14.

Code:

`#include <stdio.h>`

#define PI 3.14

int main(void)

{

int a,b,c, degree;

/* Enter the start degree, end degree, and increment */

printf("Enter a b c : ");

scanf("%d %d %d", &a, &b, &c);

for (i=a;i<=b;i=i+c)

{

printf("degree Radian");

printf(" %d %f", i, i*3.14/180);

}

system("pause");

/* Exit program. */

return 0;

}