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- <!DOCTYPE html>
- <html>
- <head>
- <title>kerter</title>
- </head>
- <body>
- <form class='sikidom' name='teglalap'>
- <h4>A téglalap</h4>
- <b>Kiindulási adatok: </b><br>
- <span><i><b>'a'</b></i> oldal hossza: </span>
- <input name='a' size=5> cm <br>
- <span><i><b>'b'</b></i> oldal hossza: </span>
- <input name='b' size=5> cm <br>
- <input type=button value='Számol' onclick=' szamol(); '>
- <hr>
- <b>Eredmények:</b><br>
- <span>Kerület:</span>
- <input name='K' size=10 readonly> cm <br>
- <span>Terület:</span>
- <input name='T' size=10 readonly> cm<sub>2</sup>
- <form>
- <script>
- function szamol(){
- a = parseFloat(document.teglalap.a.value)
- b = parseFloat(document.teglalap.b.value)
- K = 2*(a+b)
- T= a*b
- document.teglalap.K.value = K
- document.teglalap.T.value = T
- }
- </script>
- </body>
- </html>
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