Code:hi. 1st of all i'm very sorry with my english.i'm not very fluent in it. I have a presentation about c programming due next Monday, 16.Feb.2009 The presentation is quite easy.I need to explain every line of the programme which i will write below.FYI,i took it from a C programming book.I already make some homework about the explanation but i think it is not enough..can someone recheck it for me..maybe add something useful or make it more clearer.Really need help here.Convert Radians to Degree1. #include <stdio.h> 2. #define DEGREE_FACTOR 57.295779 3. int main (void) 4. { 5. double radians; 6. double degree; 7. printf ("Enter the angle in radians:"); 8. scanf ("%lf", &radians); 9. degree = radians*DEGREE_FACTOR; 10. printf ("%6.3f radians is %6.3f degree\n", radians, degree); 11. return 0; 12. }The Explanation1. Handle for input and output. 2. Macro defination that define degree factor which is 57.295 3. The main function or the body program indicates interger data type. (void)? can someone explain it? 4. Begginning of the program. 5. Variable which is radians.Double radians means it is from floating-point variables. 6.Variable which is degree.Double degree means it is from floating-point variables. 7.Output statement function.Can sumeone add more explanation? 8.Input statement function.using format specifier float because using float data type, and address to radians in the memory location.Can someone explain it more.Any 1 more thing,what is lf? i know f is for float,but l ? 9.The result,degree is stored in memory location.A mathematical calculation. 10. Output function which is %f will be replace by answer, and radians and degree will be locate in memory location for area.\n is for line spacing.Can someone explain why there is 6.3f radians and 6.3f degree?.I really dont know 11. Return to OS to take over. 12. End of program. I have red highlighted my major questions that i have been confiused and blured.Anyone also can add more explanation that will help improve my presentation.I hope u can help me.I really need help here A.S.A.P..Thanks~