// Copyright 1998-2004 Gisele Glosser. All Rights Reserved. // // Our interactive math lessons are shareware. You may use our free demo lessons // on mathgoodies.com only. You may NOT download nor save them. You can purchase // a license to use all 81 of our lessons off line by visiting: // http://www.mathgoodies.com/cd/ var msg="";var tempWindow;var newTags;function x08226313(form,whichQuestion){var msg;var noErrors=true;var testValue=form.entry.value;var testChar="";var testZero="";var i=0;var temp="false";if(testValue==""||testValue==null){msg="Please enter a number in the ANSWER BOX before clicking ENTER.";noErrors=false;}else{testZero=testValue.toString();for(i=0;i";msg+="A circle is a shape with all points the same distance from its center. It is named by its center. ";msg+="The circle to the right is called circle A since its center is at point A.";msg+="";msg+="";msg+="[IMAGE]";msg+="";}else{if(Def=="pi"){msg="If you measure the distance around a circle and divide it by the ";msg+="distance across the circle through the center, you will always come ";msg+="close to a particular value, depending upon the accuracy of your ";msg+="measurement. This value is approximately 3.14159265358979323846... ";msg+="We use the Greek letter (pronounced Pi) to represent this value. ";msg+="The number Pi goes on forever.";}else{if(Def=="radius"){msg="The radius of a circle is the distance ";msg+="from the center of a circle to a point on the circle. ";msg+="If you place two radii end-to-end in a circle, you would ";msg+="have the same length as one diameter. (Note: radii is ";msg+="the plural of radius.)";}}}return msg;}function x2826022670(definition){passDef=definition;x1096653(passDef);var newTags="Definition Window";newTags+="";newTags+="

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