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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     float r, luas;
  5.  
  6.     printf("Masukkan jari-jari: ");
  7.     scanf("%f", &r);
  8.  
  9.     luas = 3.14 * r * r;
  10.  
  11.     printf("Luas lingkaran = %.2f\n", luas);
  12.  
  13.     return 0;
  14. }
  15.  
  16.  
  17.  
Success #stdin #stdout 0s 5316KB
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stdin
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12 45
stdout
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Masukkan jari-jari: Luas lingkaran = 452.16
https://ideone.com/PNyNHx
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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