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  1. #include <stdio.h>
  2.  
  3. float area_rectangle(float,float);
  4. float area_triangle(float,float);
  5. float area_square(float);
  6. int main()
  7. {
  8. float res1,res2,res3;
  9. res1 = area_rectangle(3.5,6);
  10. res2 = area_triangle(4.5,7);
  11. res3 = area_square(3);
  12. printf("The area of rectangle is %f\n",res1);
  13. printf("The area of triangle is %f\n",res2);
  14. printf("The area of square is %f\n",res3);
  15. return 0;
  16. }
  17. float area_rectangle(float length,float breadth)
  18. {
  19. float area;
  20. area = length * breadth;
  21. return area;
  22. }
  23. float area_triangle(float base,float height)
  24. {
  25. float area;
  26. area = 0.5 * base * height;
  27. return area;
  28. }
  29. float area_square(float side)
  30. {
  31. float area;
  32. area = side * side;
  33. return area;
  34.  
  35. }
  36.  
Success #stdin #stdout 0s 2248KB
stdin
Standard input is empty
stdout
The area of rectangle is 21.000000
The area of triangle is 15.750000
The area of square is 9.000000