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  1. /* A program to figure out the three defining aspects of a Circle */
  2.  
  3. #include <stdio.h>
  4.  
  5. #define PI 3.1416
  6.  
  7. /* Function Prototypes */
  8. float circleCircumference (float Diameter);
  9. float circleRadius (float Circumference);
  10. float circleDiameter (float Circumference);
  11.  
  12. int main ( )
  13. {
  14.  
  15.     float circumference;  /* circumference of a circle */
  16.     float diameter;       /* diameter of a circle */
  17.     float radius;         /* radius of a circle */
  18.  
  19.     printf ("Enter the Circumference in Centimeters: ");
  20.     scanf ("%f", &circumference);
  21.  
  22.     diameter = circleDiameter (circumference);
  23.     radius = circleRadius (circumference);
  24.  
  25.     /* calculate the Diameter and Radius based on the Circumference */
  26.     printf ("\nThe Diameter of our Circle is: %5.1f \n", diameter);
  27.     printf ("The Radius of our Circle is %5.1f \n", radius);
  28.  
  29.     printf ("The Circumference given the Diameter %5.1f is %5.1f \n",
  30.                 diameter, circleCircumference (diameter));
  31.  
  32.     return (0);
  33.  
  34. } /* main */
  35.  
  36. // ***********************************************************************
  37. // Function: circleCircumference
  38. //
  39. // Description: Calculates the Circumference of a Circle
  40. //              given the Diameter of a Circle
  41. //
  42. // Parameters:  Diameter - The Diameter of the Circle
  43. //
  44. // Returns:     Circumference - The Circumference of a Circle
  45. // ***********************************************************************
  46. float circleCircumference (float Diameter)
  47. {
  48.     return (PI * Diameter);
  49. }
  50.  
  51. // ***********************************************************************
  52. // Function: circleRadius
  53. //
  54. // Description:  Calculates the Radius of a Circle
  55. //               given the Circumference of a Circle
  56. //
  57. // Parameters:   Circumference - The Circumference of the Circle
  58. //
  59. // Returns:      Radius - The Radius of a Circle
  60. // ***********************************************************************
  61. float circleRadius (float Circumference)
  62. {
  63.     return (Circumference / (2 * PI));
  64. }
  65.  
  66. // ***********************************************************************
  67. // Function: circleDiameter
  68. //
  69. // Description:  Calculates the Diameter of a Circle
  70. //               given the Circumference of a Circle
  71. //
  72. // Parameters:   Circumference - The Circumference of the Circle
  73. //
  74. // Returns:      Diameter - The Diameter of a Circle
  75. // ***********************************************************************
  76. float circleDiameter (float Circumference)
  77. {
  78.     return (Circumference / PI);
  79. }
Success #stdin #stdout 0s 5320KB
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stdin
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1000
stdout
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Enter the Circumference in Centimeters: 
The Diameter of our Circle is: 318.3 
The Radius of our Circle is 159.2 
The Circumference given the Diameter 318.3 is 1000.0
https://ideone.com/HgjyAZ
language:
C++14 (gcc 8.3)
created:
8 hours ago
visibility:
public

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