# In - Tính diện tích 1 - JavaScriptBank.com

Phiên bản đầy đủ: jsB@nk » Tính toán » Toán học » Tính diện tích 1
URL: http://www.javascriptbank.com/area.html

Tính diện tích của một số hình trong toán học.

Phiên bản đầy đủ: jsB@nk » Tính toán » Toán học » Tính diện tích 1
URL: http://www.javascriptbank.com/area.html

JavaScript
`<script language="JavaScript">function Cone(form){form.an1.value = form.rad.value * form.rad.value * 3.14 * form.height.value / 3}function Cube(form){form.an2.value = form.edge.value * form.edge.value * form.edge.value}function Cyl(form){form.an3.value = form.rad3.value * form.rad3.value * 3.14 * form.height3.value} function Rec(form){form.an4.value = form.length4.value * form.width4.value * form.height4.value}</script><!--    This script downloaded from www.JavaScriptBank.com    Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->`

HTML
`<form><h1>Cone</h1>Enter the radius of the base<input type="text" name="rad" size="20"><br>Enter the height of the cone<input type="text" name="height" size="20"><br><input type="button" value="Find Volume" onclick="Cone(this.form)"><br><input type="text" name="an1" size="20">cubic feet<br><h1>Cube</h1>Enter the length of one edge<input type="text" name="edge" size="20"><br><input type="button" value="Find Volume" onclick="Cube(this.form)"><br><input type="text" name="an2" size="20">cubic feet<br><h1>Cylinder</h1>Enter the radius of the base<input type="text" name="rad3" size="20"><br>Enter the height of the cylinder<input type="text" name="height3" size="20"><br><input type="button" value="Find Volume" onclick="Cyl(this.form)"><br><input type="text" name="an3" size="20">cubic feet<br><h1>Rectangular Prism</h1>Enter the length<input type="text" name="length4" size="20"><br>Enter the width<input type="text" name="width4" size="20"><br>Enter the height<input type="text" name="height4" size="20"><br><input type="button" value="Find Volume" onclick="Rec(this.form)"><br><input type="text" name="an4" size="20">cubic feet<br></form><!--    This script downloaded from www.JavaScriptBank.com    Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->`