Sunday, August 15, 2010

area of a circle

Let us learn about area of a circle formula


The area of a circle is the number of square units inside that circle.
A circle is a closed smooth curve, each point on the boundary of which is equidistant from a fixed point inside it which is called the centre
Area is the measure of surface occupied by an object. The standard unit for measurement of area is meter square (m2).However the area of smaller dimensions can be expressed in mm2 or cm2. The areas of large dimensions can be expressed in acre or hectare
area of a circle examples
Finding the area of circle with radius equal to 6.5 inch using π = 3.14
Solution:The Area of circle as, A=πr2
Substitute the values of radius and π.
Therefore, A= (3.14 * 6.5*6.5)
Squaring the radius and then multiplying with 3.14 and then we get,
Area=3.14 * 42.25
answers to area of circle = =132.67 square inch.
I hope the above explanation was useful.Keep reading and leave your comments.

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