formula of a circle

         The circle is the one of Euclidean geometry integer. Circles is two-dimensional shapes. Circles are consisting of several points in a form that are equidistant from a bestowed spot titled the touch. The demotic distance of the circle of a part from shape area is called its length or but r. the damage pi and r is mainly victimized for in lot formulas.
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Area of circle is pi r squared or  r²

The area of circle is [pi] r 2

Given figure is circle.
 r is radius of circle. Value of is 4.5 cm

The pi value is [22/7] or 3.14

Area = [pi] r 2

The solution is

Area = 3.14 * 4.5 * 4.5

Multiply all the terms

Area = 63.585 cm squared or cm2

Area of circle is = 3.14 * 20.25
Next  time we will discuss more about this concept.See this link also to know more radius of a circle.
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