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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.     float r, area;
  6.  
  7.     printf("Enter the radius of the circle: ");
  8.     scanf("%f", &r);
  9.  
  10.     area = 3.1416 * r * r;
  11.  
  12.     printf("Area of the circle = %.2f", area);
  13.  
  14.     return 0;
  15. }
Success #stdin #stdout 0.01s 5320KB
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stdin
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stdout
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Enter the radius of the circle: Area of the circle = 50.27
https://ideone.com/Nf3SQd
language:
C (clang 8.0)
created:
10 hours ago
visibility:
public

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