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- <!DOCTYPE html>
- <html>
- <head>
- <title>trojkat</title>
- <script type="text/javascript">
- function trojkat(){
- var a=prompt("Podaj pierwszy bok");
- var b=prompt("Podaj drugi bok");
- var c=prompt("Podaj trzeci bok");
- var x;
- x=a+b+c/2;
- var z;
- z=x*(x-a)(x-b)(x-c);
- var p;
- p=math.sqrt(z);
- document.write('obwod=','',x + '</br>');
- document.write('pole=','',p);
- }
- </script>
- </head>
- <body>
- <form>
- <INPUT TYPE="button" name="oblicz" value="Oblicz" onclick="trojkat();">
- </form>
- </body>
- </html>
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