basic mathematics image
 basic mathematics image


Area of a circle calculator


The following area of a circle calculator will help you find the area of any circle when the radius is given.

Just enter the value of the radius and hit calculate button.

Recall that the formula to get the area of circle  

is pi × r2 with r = 3.141592653589793

Therefore, the area depends only on the size of r. That is why you only need to enter r here to get the area

The calculator will only accept positive value for r since a distance cannot be negative

As a reminder, if r = 3 cm for instance,

area = 3.14 × 32 = 3.14 ×9 = 28.27 cm2


Enter the radius of the circle:     

       

The result is :  


                   sitesforteachers.com         Top Sites In Education         sitesforparents.com



Page copy protected against web site content infringement by Copyscape




Bookmark this page







Template Design
Copyright © 2008. Basic-mathematics.com. All right reserved