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  1. #include <stdio.h>
  2. #include <math.h>
  3. struct tringle {
  4. 	double a;
  5. 	double b;
  6. 	double c;
  7. }hen;
  8.  
  9. int main(void) {
  10. 	hen.a = 5;
  11. 	hen.b = 5;
  12. 	hen.c = 5;
  13.  
  14. 	double q,r,s;
  15. 	q = (hen.a + hen.b + hen.c) /2;
  16. 	r = q* (q - hen.a) * (q- hen.b) * (q- hen.c);
  17. 	s = sqrt(r);
  18.  
  19. 	printf("%lf", s);
  20. 	return 0;
  21. }
  22.  
Success #stdin #stdout 0s 5292KB
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https://ideone.com/QVwC7e
language:
C99 (gcc 8.3)
created:
9 days ago
visibility:
public

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