Full version: jsB@nk » Calculation » Math » Area Calculator
URL: https://www.javascriptbank.com/area-calculator.html
A simple calculator to determine the area of a square, triangle, rectangle, circle or sphere.
Full version: jsB@nk » Calculation » Math » Area Calculator
URL: https://www.javascriptbank.com/area-calculator.html
<SCRIPT LANGUAGE="JavaScript">//Author Michael Hundt (mchundt@nglic.com)// Modified by: Ronnie T. Moore<!-- Beginfunction doArea(num) {switch(num) {case 0 : return (""); break;case 1 : var length = prompt("Please enter the length of your square:", ""); length = length * length; return (length); break;case 2 : var width = prompt("Please enter the width of the base:", ""); var height = prompt("Please enter the height of the triangle:", ""); return (width * height / 2); break;case 3 : var width = prompt("Please enter the width of your rectangle:", ""); var height = prompt("Please enter the height of your rectangle:", ""); return (width * height); break;case 4 : var radius = prompt("Please enter the radius of the circle: ", ""); return (Math.PI * Math.pow(radius, 2)); break;case 5 : var radius = prompt("Please enter the radious of the sphere:", 0); return (4 * Math.PI * (Math.pow(radius, 2))); break; }}// End --></script><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com--><form name=calcarea>Find the area of a <select name="shape" size="1" onChange="this.form.area.value = doArea(this.selectedIndex);"><option> ...<option value="square">Square<option value="triangle">Triangle<option value="rectangle">Rectangle<option value="circle">Circle<option value="sphere">Sphere</select>= <input type=text name=area size=10></form><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->