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Dec 10th, 2016
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  1. <!DOCTYPE html>
  2. <html>
  3. <head>
  4. <title>trojkat</title>
  5. <script type="text/javascript">
  6. function trojkat(){
  7. var a=prompt("Podaj pierwszy bok");
  8. var b=prompt("Podaj drugi bok");
  9. var c=prompt("Podaj trzeci bok");
  10. var x;
  11. x=a+b+c/2;
  12. var z;
  13. z=x*(x-a)(x-b)(x-c);
  14. var p;
  15. p=math.sqrt(z);
  16. document.write('obwod=','',x + '</br>');
  17. document.write('pole=','',p);
  18. }
  19. </script>
  20. </head>
  21. <body>
  22. <form>
  23. <INPUT TYPE="button" name="oblicz" value="Oblicz" onclick="trojkat();">
  24. </form>
  25. </body>
  26. </html>
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