PBL8.21.2.3.
PBL 8.21.2.3.                                   254.                                                            PBL3      ...
anf.htm     http://ba.hcu.ac.th/Elearning/     elearn.htm3.        scanf()       printf()
#include<stdio.h>#include<conio.h>#define pl 3.14159285    void main(){       float area,r;clrscr();        printf("Enter ...
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8.2

  1. 1. PBL8.21.2.3.
  2. 2. PBL 8.21.2.3. 254. PBL3 scanf () printf()- scanf() printf()- / - http://www.lks.ac.th/kuanjit/sc
  3. 3. anf.htm http://ba.hcu.ac.th/Elearning/ elearn.htm3. scanf() printf()
  4. 4. #include<stdio.h>#include<conio.h>#define pl 3.14159285 void main(){ float area,r;clrscr(); printf("Enter the number:n"); scanf("%f",&r); area=pl*r*r; printf("Area is: %fn",area); getch(); }

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