Area of a circle formula

In this blog we are going to discuss about Area of a circle formula.

A circle is a simple shape of Euclidean geometry consisting of those points in a plane which are equidistant from a given point called the center. The common distance of the points of a circle from its center is called its radius. Circles are simple closed curves which divide the plane into two regions, an interior and an exterior. The following figure represents the circle,  

                                       
                                                                                                                                                                    

Formula for find the area of the circle is r²

"r" represents the radius of the circle

Here we are gong to study about how to find the area of the circle and its example problems.

Area of the Circle – Example Problems

The radius of a circle is 3 inches. What will be the area?

Soln. A = π.d²/4 = 3.14 · (3 in) · (3 in) = 3.14 · (9 in²) = 28.26 in² 

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