function definition to calculate area of circleĪrea_circle = 3.14 * radius_circle * radius_circle Printf("Area of circle : %.2f", areaOfcircle(radius)) How do I Calculate the Area of a Circle Area × radius × radius Area × radius × radius radius diameter 2 Area × radius × radius radius. To find the area of a semicircle with diameter, divide the diameter by 2 2 to find the radius, and then apply. You find the area of a semicircle by plugging the given radius of the semicircle into the area of a semicircle formula. C program for calculating area of a circle using function #include The formula for the area, A A, of a circle is built around its radius. After that area is calculated and then displayed. In this program first, a user is asked to enter the value of the radius of the circle. Printf("Area of circle : %f", area_circle) The area of a circle is A pi multiplied with r and the circumference is U 2 multiplied with pi. Pi is always the same number for any circle. The following formulas are used for circle calculations. We can determine it using the area of sector formula, which is A. Pi () is the ratio of the circumference of a circle to its diameter. The area of a circle refers to the region which is occupied by a circle in the 2D plane. The area of a circle is equals to pi () multiplied by its radius squared. Simple c program to calculate area of circle #include The area of a circle is the region enclosed by the circle. Please go through following articles of c programming, if you do not already know about these topics : The formula for the area of the circle is : Area_circle = Π * r * r In this article, we will illustrate c program to calculate area of circle.
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