This program allows the user to enter the value of circumference. In this program, we included one more header file called, It allows using pi without declaring it. Printf("\n Area Of Circle = %.2f\n", area) * We can use M_PI instead of defining PIĪrea = (circumference * circumference) /(4* M_PI) Printf("\n Please Enter the Circumference of a circle \n") If you know the circumference, we can calculate the area of a circle using the formula: A= C²⁄ 4π (Here C is circumference) /* C Program to Calculate Area Of a Circle using circumference */ Output Please Enter the radius of a circleĬircumference Of a Circle = 37.68 C Program to Calculate Area Of a Circle using Circumferenceĭistance around the circle called the circumference. Printf("\n Circumference Of a Circle = %.2f\n", circumference) Printf("\n Area Of a Circle = %.2f\n", area) Printf("\n Please Enter the radius of a circle\n")
* C Program to Calculate Area and Circumference Of a Circle using Radius */
Next, this C program will find the area and circumference of a circle as per the formula. In this c program to find area of a circle, we allow the user to enter the radius, and We defined pi as a global variable and assigned value as 3.14. If we know the radius, then we can calculate the area of a circle using the formula: A=πr² (Here A is the area of the circle and r is radius). C Program to Calculate Area Of a Circle using Radius The standard formula to calculate the area of a circle is A=πr². The area of a circle is the number of square units inside the circle. Before we step into the program, Let see the definitions and formulas behind this.
#CIRCLE AREA FORMULA HOW TO#
How to write C Program to Calculate Area Of a Circle with example?.
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