IMPORTANT: All measurements are in the same unit. It is thanks to this method that we propose to you a calculator specially dedicated to the calculation of a disc area. The pi () is approximately equal to 3.14159265359 and represents the ratio of any circle's circumference to its diameter, or the ratio of a circle's area to the. The simplest method to calculate the area of a circle is the radius using the number Pi (3.14159 ).
#Area of a circle calculator how to#
If you have any questions about this, do not hesitate to leave us a comment and we will be happy to help you. How to find the circumference of a circle c 2 × × r × D 2 × × S, where r, D and S are the radius, diameter and area of a circle respectively. To do this, we apply the following formula:Īnd once we have the radius, we can apply the formula for calculating the area of a circle you have in the first point of theory. In this case, the first thing we have to do is to calculate how much is the radius from the perimeter. We have another example of an exercise in which we may be asked for Calculate the area of the circle from its perimeter or length. What if they give us the perimeter or length? In this way ya tenemos 'r' y podemos aplicar la fórmula as described in the previous point.
If we get the diameter, the radius is obtained by dividing its length by 2. Calculate the area of a circle from a diameter measured in metres with results in square metres, hectares and acres. Undoubtedly, this is the simplest exercise that can be proposed to us and that really does not involve any type of difficulty other than remembering what is the formula for the area of the circumference?. Area, Circumference & Diameter of Circle - work with steps Input Data : Radius 8 in Objective : Find the area of circle. Taking into account the above formula we are left with the following:Īrea of circumference = 3.14 x 6 2 = 113.04 cm 2 For example, we will calculate the area of a circle whose radius is 6 centimeters.
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