# How Do You Find Area Of A Circle?

The area of a circle is the total number of square units in the circle. If you have a circle in a 1cmx1cm drafting paper, you can simply count the number of boxes in your circle. That would be your area in square cm (cm2).

However, a more reliable, efficient and commonly used formula for calculating area of circles is:

The value of pi is always constant at 22/7 which is equivalent to 3.142.
The radius is the distance from the center of the circle to one peripheral line. It is always half the value of the diameter. A diameter is a line stretching from one point on a circles boundary to another and passing through the center of the circle. It is basically two radii joined together at the center in a straight line.
So, if you have a question where you are given the diameter and you need to know the radius, simply divide the value of diameter by 2:

Or

Hope circle area is no problem for you now!
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You will have to use the formula aequal3.14*the radius...
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